Stringers

Chrome extension · Rising extensions

We track user counts and ratings for Chrome Web Store extensions every day, find the ones recently gaining traction, study each one: why it took off, where its users come from, where the money comes from, and who the competitors are. Then we judge whether following it now is a good opportunity, and give a grade: S worth acting on right now, A worth following, with one or two bets to make, B worth a try, with clear weaknesses, C you can learn from it, but following it isn't worth much, D just be aware of it, E avoid. Sorted by grade. The colored label shows how visible it is right now: the fewer people know about it, the more opportunity there usually is. 157 total.

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  1. Lots of people in the Gulf use iPhone with Windows, and AirDrop and Quick Share don't reach across them, so people were using WhatsApp to send files to themselves. The developer posted screen-recording demos in Arabic on TikTok every day, and several videos with over 10k views directly drove the user curve.
    How to follow Don't copy the file-transfer tool. Copy the playbook: pick a need that a big company has only half-built in your native language, ship it as an extension plus a web page, post screen recordings on TikTok every day, and pair it with local payment methods and a low one-time price. If you don't get 10,000+ views within 60 days, change the topic.
    Still little known · Distribution playbook sendover.dev · 999 users · rating 5.0(6)
  2. Big companies sell translated captions only to organizations that need an admin to enable them; guests, contractors and personal accounts can't unlock them even if they pay. Trippi cut the price to $0.6 per hour, and from late August to early September turned the store listing, UI and about 1,100 landing pages into dozens of languages; growth started accelerating from then.
    How to follow Don't build another meeting-translation extension. Learn how it found its opportunity: look for features big companies offer only to organizations and turn them into something an individual can install, or go after what it doesn't cover, like desktop, mobile, and specific language groups. Then follow its playbook: localized store pages in every language, batch landing pages, and submissions to each directory site.
    Still little known · Distribution playbook The product itself gettrippi.app · 2,000 users · rating 5.0(6)
  3. The users are Indonesian brand and agency specialists who handle influencer outreach. They calculate data by hand, copy into spreadsheets, and spend the whole day on Threads. The founder replied and DMed inside this community, and one line, "finding 10 KOLs used to take an hour, now under 2 minutes", got 677 likes.
    How to follow If you already work in a marketing community in a non-English country, build a local-language version of the same thing: a free extension that writes data into the user's own spreadsheet, a paid AI-powered prospecting feature, local payment methods with credit-pack pricing, and founders who answer questions in niche job communities to win users.
    Still little known · Distribution playbook The product itself · 1,000 users · rating 5.0(2)
  4. It uses a feature TikTok's web version lacks (watching cart videos and product prices on PC) as a free hook. The author posted in his own Facebook and a large Vietnamese AI group, bringing in the first users, then updated frequently, steering people toward a cheap product-selection subscription paid by local bank transfer.
    How to follow Pick a Southeast Asian country (Indonesia, Thailand, the Philippines) and repeat it: a free local-language TikTok mini-tool as the hook, with product-research data at a few dollars a month paid through local QR-code payments, promoted in the seller groups you're already in, framed as "a free little tool I built."
    Still little known · Distribution playbook Timing or platform event Resource-driven Tô Anh Văn · 7,000 users · rating 4.75(16)
  5. The person behind it already has an Instagram unfollow extension with 20k users, and is simply re-launching the playbook on a new platform. Titles and descriptions use users' own search wording, 52 languages capture non-English search, and the category's biggest player has only 8,000 users and a 3.4 rating, so it's easy to rank near the top.
    How to follow Don't build another TikTok unfollow tool. Use this approach instead: pick a repetitive manual chore the platform won't do for you, build in rate limiting and a protected list, write titles in people's actual search phrasing, localize into dozens of languages, then port the same code to five or six platforms.
    Still little known · Distribution playbook Resource-driven addonschrome.com · 1,000 users · rating 4.916666666666667(48)
  6. TradingView can't place orders directly into MT5 accounts, so retail forex traders switch platforms daily and calculate lot sizes by hand. It used split-screen recordings on TikTok to make clear "no lot-size math, works on the free plan", and two September videos with 150k views brought in most of its users.
    How to follow Don't build another English version. Pick a non-English trading community nobody is serving, build a local-language version, cut the price to $15–30/month, add multi-account support, mobile, and prop-firm rule alerts, and post short videos daily in its screen-recording style.
    Still little known · Distribution playbook · 474 users · rating 5.0(1)
  7. It hasn't really taken off yet: French resellers do need to list across platforms and fear selling one item twice, and US tools have either exited or don't serve France. It's growing slowly to a few hundred users through its own TikTok videos and a full set of comparison pages.
    How to follow Don't build another one in France. Take the same playbook to countries that are still empty, such as Germany (Vinted + Kleinanzeigen) or Spain (Vinted + Wallapop). First make cross-posting and automatic delisting between the two platforms solid, then get users through short videos about account bans and making money.
    Still little known · Not yet proven Timing or platform event Distribution playbook fillsell.app · 448 users · rating 5.0(2)
  8. The founder boiled public data down to a single letter, which works both in search results and as a short-video thumbnail. Then he used Reddit self-promotion, rode the London Banana trend to get a Manchester T feature in the Daily Mail, ran TikTok commuter-town videos (up to 370k views), and built 16,000 place-name SEO pages to pull house hunters onto the site.
    How to follow Don't build another Rightmove extension in the UK. Pick a country where government data is open and the portals won't draw neighborhood conclusions. Start with a street-level score map and place-name pages, get users through forum self-promotion, local-media data journalism, and "a small town X minutes from the city" short videos, and sell weekly passes plus a one-time pass. Only build a portal extension later, as a funnel back in.
    Buzzing in small circles · Distribution playbook Timing or platform event The product itself liveable.co.uk · 342 users · rating 4.714285714285714(7)
  9. "YouTube to MP3" is one of the oldest big keywords on the internet. Because of policy, almost no one holds it on the Chrome Web Store. This one puts the term in its localized titles, capturing non-English search traffic, using a template already proven on a 60k-user main account.
    How to follow Use the same playbook of "English neutral, real words in the local language," and pick a language it handles poorly, or another big keyword that a policy has blocked. Give more generous free quotas than it does, keep backup accounts, and get users through local-language store optimization plus review articles.
    Buzzing in small circles · Distribution playbook Timing or platform event gaxunawenu81 · 8,000 users · rating 4.115384615384615(52)
  10. Paid tools of this kind already existed, but it used "completely free, no sign-up" to get the Yêu Kế Toán Facebook page, run by an accounting teacher, to push it three times in a row as "not an ad" (9/9, 10/2, 10/30, about 1,590 shares in total), just as the fixed-rate tax was scrapped, cash-register invoices multiplied, and quarterly tax filing came around.
    How to follow Don't build another one in Vietnam. Pick a country whose e-invoice portal is hard to use (for example Indonesia's Coretax or Malaysia's MyInvois). Build a free extension, get local accounting KOLs to recommend it, keep the paid features outside the extension, and sell to bookkeeping agents on multi-tax-ID support, original PDFs, and reconciliation reports.
    Buzzing in small circles · Distribution playbook Timing or platform event · 5,000 users · rating 4.333333333333333(12)
  11. A 2026 year regulation made the homeroom teacher handbook a mandatory electronic record, first due at the September school start. The author is a teacher blogger with 32k followers who posted a Reel two days after the listing went up, which got 820k views and sent teachers straight to the store.
    How to follow Don't build another one in Vietnam. Copy the playbook for another country or profession: find an official web system that is mandatory, has heavy data entry, and needs refilling every cycle. Before the first new deadline, ship a plugin that fills the page in one click and lets users save for themselves, then get someone with fans in that profession to post a short video explaining the policy and demoing the tool.
    Quietly circulating · Distribution playTiming or platform eventResource-drivenThầy Giáo Tin · 6,000 users · rating 4.0(5)
  12. In 2023, X started charging for its API, and the old free cleaning and blocking tools shut down. It bypassed the API and took over Korean Twitter's demand for periodic post cleaning and RT giveaways. Each use auto-generates a tweet tagged #TWAFFLE to promote itself. It builds the habit for free first, then charges per account.
    How to follow Don't follow in Korea. Build a Japanese version for Japan: after 黒歴史クリーナー and ツイ消し職人 shut down, Japan is left with only single-feature free tools. Make the giveaway picker free, charge a monthly fee per account for cleanup, copy the auto-share-tweet mechanic, and use LINE for support and payments.
    Quietly circulating · Product itselfDistribution playTiming or platform event트와플 TWAFFLE · 10,000 users · rating 5.0(2)
  13. People have been asking for batch editing in the Google Photos web version for 2019 years, and the threads got locked anyway. It was the first to actually build it. Then it renamed the store to big search terms like "Delete All," translated into 9 languages, and added PetaPixel and Fast Company coverage, using a low free quota of 25 photos a month to push people to pay.
    How to follow Don't build another Google Photos batch editor. Copy the approach: go to the help communities of other big products, find batch features they've lacked for years, and fill those gaps with a plugin inside the original product. Name the store listing after search terms, and drive traffic with adjacent high-volume needs.
    Quietly circulating · Distribution playProduct itselfbatchphotoedit.com · 1,000 users · rating 4.827586206896552(58)
  14. US tools like Vendoo and Crosslist don't serve France or accept Leboncoin, and Crosslist even quit Vinted in October. Klork only reads from Vinted, posts at human speed in your own browser, and asks for no password. That catches sellers afraid of bans, and the founder's own seller identity, Discord, long French articles, and micro-influencer discount codes do the rest of the recruiting, bit by bit.
    How to follow Don't build another one in France. Pick countries like Spain or Germany that have lots of local secondhand marketplaces and aren't covered by US tools. Copy the structure: read listings from the largest local platform and post them to other platforms, never touching passwords or triggering anti-bot systems. Acquire users through seller communities and long-form content in the local language.
    Quietly circulating · Timing or platform eventDistribution playProduct itself · 685 users · rating 5.0(3)
  15. Pokémon cards are out of stock, retailers have moved to queued releases, and everyone in the free server gets the alert. People who pay are buying "open the page for me first." The users came from the free Discord, Reddit seeding and invite giveaways, not from the Chrome Web Store.
    How to follow Don't follow in Pokémon. Take the playbook of a free Discord server plus Whop memberships plus a plugin that acts as a paid key and does the work for you, and apply it to restock-heavy categories with no paid restock groups yet (Pop Mart, new trading cards) or to other countries.
    Buzzing in small circles · Distribution playbook Timing or platform event · 1,000 users · rating 5.0(13)
  16. Vest raised $13M in October, and traders keep posting their gains on X. Its rules let people run batches of cheap exam accounts without opening an API. A developer who traded on Vest every day built the first free, in-page, most feature-complete copy tool, and it spread through GitHub first, then the store.
    How to follow Don't build another one on Vest. Watch for the next trading platform that just raised funding, has withdrawal posts going viral, allows multiple accounts, and has official tools that can't keep up. Build a free enhancement plugin for its web app, earn through the platform's referral program, keep the code public with minimal permissions, and give the plugin to referral-code tutorial sites to spread.
    Quietly circulating · Timing or platform eventProduct itselfDistribution play · 331 users · rating 5.0(2)
  17. Korean Threads affiliate side hustles are hot; the instructor behind it pulls people in on YouTube with 「don't buy courses, free giveaway」 plus earnings screenshots (90k views per video), funnels them into Kakao groups and the café, then upsells ₩44,000/month memberships with check-in challenges and ₩3.49M offline courses.
    How to follow Don't just build a plugin. Go to markets where Threads is hot and local e-commerce affiliate programs exist (Taiwan, Japan) and build the same stack: make content showing yourself on camera with affiliate earnings, use a free tool as the hook, bundle check-in challenges and leaderboards into the subscription, and in the community offer membership in exchange for posting earnings, so users advertise for you.
    Quietly circulating · Distribution playTiming or platform eventProduct itselfhedgehogcandy23 · 8,000 users · rating 5.0(15)
  18. Vinted only surfaces newly listed items, so sellers have to keep re-posting. The established tools are French-run, pricey, and focused on French. VintHelper competes on the lowest price in the category plus a permanent free tier, and its founder-run Spanish and Polish TikTok accounts and 730 multi-language pages reach markets the French players don't cover.
    How to follow Don't build another Vinted plugin. Apply the same approach to another platform or country: find a secondhand marketplace where sellers are forced to repost again and again, and where existing tools only support one language or are expensive. Launch a low-priced tier plus a free tier, run one TikTok account per language calling out seller pain points, and pair it with a "you vs. competitor" comparison page.
    Quietly circulating · Distribution playTiming or platform eventvinthelper.app · 2,000 users · rating 4.964285714285714(56)
  19. Vietnam's online quiz platforms Azota and Wayground are adding tab-switch monitoring, so students need 'answers without leaving the exam page'; the author timed Vietnamese TikTok videos saying 'proctoring can't detect it' right before midterm season, occupying the 'azota cheat' search slot.
    How to follow Pick a language the English product doesn't cover (Thai, Indonesian, Filipino, etc.), name the quiz platform local students actually use, sell per use with local QR-code payments, make short videos to grab the "<platform name> cheat" search slot, and launch before finals season.
    Quietly circulating · Distribution playTiming or platform eventProduct itselfquizpeek.io.vn · 2,000 users · rating 5.0(4)
  20. It turned the "checking grades = opening a pack" bit that students had been doing by hand on TikTok for four years into a button. Before launch, it gathered demand using the founder's own TikTok account with a demo video; afterwards it posted daily videos and built whatever the comments asked for.
    How to follow The Netherlands is already crowded, so go to Belgium's Smartschool, Poland's Librus, or France's Pronote, national grade systems in other countries, and build the same unpacking plugin there. Before launch, post demo videos on local TikTok to gauge demand.
    Quietly circulating · Distribution playTiming or platform eventProduct itself · 10,000 users · rating 4.28(25)
  21. The founder lost 200k dollars by not tracking these campaigns, and used that story to get the first users through in-scene podcasts and communities. The product only does "pick campaigns + accept in one go" and is mobile-first, priced under half of the old tools. From September, they gave creators discount codes and turned on Meta ads to scale.
    How to follow Don't build another one in the crowded Amazon niche. Move to places that pay but have clunky tools, like TikTok Shop affiliate, Walmart Creator, or LTK, and copy the shape: pick on mobile, execute with a desktop plugin. Tell your own story on niche podcasts, and send affiliate codes to creators. Buy paid acquisition only once you have paying users.
    Publicly known / widely discussed · Distribution playProduct itselfResource-drivencreatorkitapp.com · 895 users
  22. The author first gathered about 15k students with several Smartschool tool plugins (one of which caught search traffic from a popular plugin that had been delisted), then used the store's related recommendations to funnel them to the chat plugin. When school started in September, it jumped 9 times over; but absolute numbers were only a few hundred, and it was already declining by November.
    How to follow Don't copy the chat product. Copy its distribution instead: first grow users with a tool plugin on another platform students or employees are forced to keep open all day (Canvas, Schoology, Magister, etc.), then cross-promote your target product through that plugin. For social products, build density school by school.
    Few people know about it yet · Distribution playTiming or platform eventNot yet provendavidtanasescu.com · 562 users · rating 5.0(2)
  23. In the first week of school, the founder posted a "must-have free AI tools for school" video, ranking themselves first. Add no sign-up and automatic route switching when school Wi-Fi blocks it, and it spread slowly among students. Users climbed from 43 in late August to 6 by November 515.
    How to follow Don't build another general homework-solver plugin for the English market. If you're still in school, pick a language or exam system the big players haven't taken seriously, and copy the no-signup, limited-use, explain-steps-first setup. Cold-start two weeks before the school year with checklist short videos.
    Few people know about it yet · Distribution playProduct itselfTiming or platform eventNot yet provensightsolveai.com · 515 users · rating 4.647058823529412(17)
  24. The studio behind it has a VU student channel with 29.9k subscribers. In 10 days of assignment season it posted 29 "assignment answer" videos, each with the extension link as the first line of the description, and users grew 5 days later by 63%.
    How to follow Don't copy the VU plugin. If you already have traffic and paying customers in a vertical audience, build a free plugin that fixes the web page they open every day, put the paid entry point on the homepage, and link to it from your own content.
    Few people know about it yet · Distribution playResource-drivenTiming or platform event · 461 users · rating 5.0(6)
  25. The creator runs a free AutoEditor / AutoCapCut editor on his own YouTube channel, and the editor needs timecode-named images, which this extension batch-generates. Two viral videos sent users up, and once the traffic arrived he started charging $7 right away.
    How to follow Don't build another Flow plugin. Follow its playbook: pick one complete creative production pipeline, make the highly visible steps free tools and the repetitive steps small paid plugins, share file conventions between them, and drive traffic through your own tutorial channel, ideally in audiences like Hindi or Spanish speakers that are still underserved.
    Few people know about it yet · Distribution playProduct itselfSampathkumar V · 10,000 users · rating 3.7027027027027026(37)
  26. It didn't break out on its own. It's backed by a funded service company with paying clients. Sister-product SEO pages, LinkedIn, sponsored articles, paid YouTube reviews and friends' praise concentrated in Oct 9 pushed it to 1,000, and it stopped once its own traffic ran out.
    How to follow Don't build the same creator-data plugin. Learn the structure: a team with industry services and clients turns its internal tool into a product, uses a free mini-tool page to capture search traffic and funnel it to the main product, and offers usage-based credit packs priced in RMB to lower the purchasing barrier.
    Few people know about it yet · Resource-drivenDistribution playNot yet provenhicreator.ai · 1,000 users · rating 5.0(42)
  27. The developer is himself the owner of an Uzbek dispatch company. In late October he used his own Instagram account to post Uzbek-language videos and pull people into a Telegram group, so acquaintances recommended it to acquaintances in the Central Asian dispatch circle. Pricing is half to a quarter of US peers like LoadFetcher and Rocket.
    How to follow Don't build another Relay plugin. If you work in a blue-collar trade where expatriates cluster, turn the web page your peers refresh by hand every day into a plugin. Use it yourself first, then sell it at half the price of a computer. Promote it inside the community with native-language short videos and Telegram groups.
    Few people know about it yet · Distribution playResource-drivenProduct itself · 896 users · rating 5.0(15)
  28. The parent company pushed it through ready-made channels: long tutorial posts on Klerk with install links at the bottom, SEO landing pages on the official site, VK community roundups, long-tail store keywords, plus 5 plugins from the same publisher cross-promoting each other. It grew fastest from late September to late October, then stalled once promotion stopped.
    How to follow Don't build another procurement calculator. If you already sell SaaS in a compliance-heavy industry, break your customers' daily repetitive tasks into separate free plugins. Results should match the main product, and each tool should send users back to it after finishing. Use industry long-form articles, landing pages, and UTM tracking to bring in people from your existing channels.
    Few people know about it yet · Distribution playResource-drivenzakupki44fz.ru · 523 users · rating 5.0(1)
  29. Google made Veo free for everyone in Vids in April. Two months later the author ported the Flow version's code over, and it's the only one in the store dedicated to bulk Vids generation. Add the author's 16 same-named extensions cross-linking each other, and the result is the current 9,000 users. The author has barely promoted it.
    How to follow Don't copy the Vids product. Go after the next AI generation entry point that just opened and has its own separate credit pool: within two to four weeks, launch an "X Automation" listing, pack the title with the platform name and "automation," and make sure the post-generation timeline scheduling and final video export work well.
    Few people know about it yet · Distribution playTiming or platform eventTruong Nguyen · 9,000 users · rating 4.88(93)
  30. YouTube pushed auto-dubbing to all creators (2026-02), and "hear it in your language" became mainstream demand. DubFlow grew slowly to 1,000 on keyword titles, store pages in 55 languages, a website in 19 languages, and cross-promotion from its own extensions, with no content or creator channel.
    How to follow Don't build the "subtitles plus machine translation" approach. Follow the path of "capture audio plus real-time LLM translation, with users bringing their own API key," and build a dedicated version for one language or scenario (online courses, a specific minor language). Acquire users with comparison demos showing what others can't dub and you can.
    Few people know about it yet · Distribution playTiming or platform eventNot yet provenytdubflow.com · 1,000 users · rating 4.5(6)
  31. It never really took off. By putting “Facebook Video Downloader” at the front of its name to grab search terms, plus an early-September burst of unknown origin, it reached 1,000 users. It has since plateaued and has only 2 ratings.
    How to follow Don't build the downloader itself. First launch a subscription tool for a niche B2B audience, then build a set of small free plugins around that group's daily frictions to capture search terms and funnel users to one hub. Ideally move to a platform that isn't crowded yet, like TikTok Ads or Google Ads.
    Few people know about it yet · Distribution playNot yet proven · 1,000 users · rating 5.0(2)
  32. The Minas Gerais state courts forced a move from the old system to eproc, and tens of thousands of staff had to adapt to a new interface. The author works inside the courthouse, first rolled it out in their own unit, then let it spread among colleagues.
    How to follow Don't build another eproc plugin. Copy its way of finding demand: watch for announcements from large institutions forcing a system switch, and during the migration window build lightweight free add-on tools. If you want to make money, build for the paying side, such as lawyers.
    Few people know about it yet · Timing or platform eventResource-driven · 1,000 users · rating 5.0(12)
  33. Brazilian paid-acquisition operator Romildo localized SpyX, a mature Brazilian tool of the same kind, into Spanish; in October he posted a Reel on his Spanish Instagram asking people to comment a keyword to get the link. Users hit 10 in the first 239 days, and after that, without new posts, growth has been only single digits per day.
    How to follow Don't build another ad library plugin. If you speak Portuguese and Spanish and are part of Latin American info-product circles, watch the marketing tool in Brazil that just started charging. Build a Spanish version within two to three weeks and give it away free. Use short videos with "comment the keyword and I'll DM you" to grow your following and build a list, then charge later.
    Few people know about it yet · Distribution playNot yet proven · 356 users · rating 4.8(5)
  34. It never really took off. The author posted a self-promo thread in the school subreddit, and midterm grades were coming out, so students needed to calculate attendance and scores. It went to a few hundred users in a month, then slowed in November.
    How to follow If no one has built a plugin for your school's portal yet and you're a student, build one yourself: lightweight, runs locally, open source. Post it on the school forum before results come out to build your résumé and reputation. If you really want crowdsourced grade distributions, build them into systems many schools share, like Canvas or Moodle.
    Few people know about it yet · Not yet provenDistribution playProduct itself · 338 users · rating 5.0(3)
  35. The name collides with "Spoof Geolocation," the category leader with 200k users, so the store put it in the leader's related-extensions slot. On top of that, in the first two months after launch it collected 20+ five-star reviews in indie-dev peer-testing circles and ended up with the highest rating in its category.
    How to follow Don't build another position-changer plugin. Take its cold-start playbook: in an established category, pick a keyword the leaders already own, write the description as "Alternative to [competitor]," get the top 20 reviews by testing with peers, localize into 50 languages, and wait for the related placements. If you want to make money, set up a website, content, and Pro features from day one.
    Few people know about it yet · Distribution playNot yet proven · 2,000 users · rating 4.739130434782608(23)
  36. It hasn't really taken off: two new people a day, driven by the fact that searching e-defter in the store returns only this one, plus the long-standing pain of accountants double-clicking ledgers that won't open. Traffic from Chrome's XSLT removal went to general polyfill extensions and web tools like DefterOku.
    How to follow If you understand Turkish accounting workflows, you can build a dedicated plugin that doesn't rely on browser XSLT. Cover e-Defter, e-Fatura, and e-İrsaliye, with signature verification and batch opening. Put both e-Defter and XSLT in the name, and launch before Nov 17.
    Few people know about it yet · Not yet provenProduct itself · 341 users · rating 5.0(5)
  37. It never really took off: by stuffing titles with search terms, translating the store page into 53 languages, and wedging into the related recommendations of the leader INSSIST, it got its first 1,000 organic users, and stopped growing from September on.
    How to follow Don't build another Instagram posting plugin. If you do follow, take the same store playbook to a platform without a dominant player yet (like the desktop TikTok or the gaps in Threads' features), and first gather a group of users you can promote to directly.
    Few people know about it yet · Not yet provenDistribution playinstadesk.pro · 1,000 users · rating 4.2272727272727275(22)
  38. Stream Deck users have wanted to control regular YouTube for years, but system hotkeys stop working when the tab is in the background. It adds background control and lets keys play video directly, and the effect is obvious at a glance. One person filled Elgato's store with a string of free Profiles by device model, taking the featured slots for related plugins, then made money with free low-res and a $15 one-time purchase.
    How to copy it: Don't just build another one on Elgato. Learn its playbook: go to hardware stores with less competition, like the Logi Marketplace and Loupedeck. Make a visually obvious feature that drives interest in an ordinary utility, split free Profiles by device model to win the featured slots, and deliberately downgrade the free tier to push people toward a one-time purchase.
    Nobody knows about it yet · The product itselfDistribution playbookdanstudio.dev · 2,000 users · rating 4.7272727272727275(11)
  39. It buys installs through popups on pirate sites themselves, its landing page names 61 sites, and it catches people looking for a blocker after uBlock Origin left Chrome. The same team has already run three brands on the same code.
    How to copy it: Don't build another "Ad Block [something]". Learn its playbook: pick a scenario where users are annoyed right now and traffic is cheap. Match your copy and landing page word for word to that scenario, buy ads where the pain happens, and set up proper install attribution.
    Nobody knows about it yet · Distribution playbookTiming or platform eventinfo · 300,000 users · rating 4.626666666666667(143)
  40. It never took off on its own. What took off was a same-name extension from the same team, published the day before the original stopped downloads (now renamed Open Research Button, about 30k users). Through the same name, near-match domains and rewritten outside links, it caught the search volume the original had built up over more than a decade.
    How to copy it: Don't impersonate anyone. Watch well-known free tools that have announced they're shutting down. Before downloads stop, list a version called "Alternative to XX" that adds the features the replacements lack. Then ask the shutting-down party and library guides to swap their links to yours.
    Nobody knows about it yet · Distribution playbookTiming or platform eventDidn't break outopen-access-button.org · 2,000 users · rating 5.0(1)
  41. The author is a front-line math teacher with 12k followers. Ahead of late-September school start, when new teachers prep for permanent posts, he posted "one-minute lesson plan" videos on his Facebook page daily; the top one got 38k views.
    How to copy it: Don't go head-to-head with it in Algeria. Find a teacher with a following among teachers in their own country and partner up. Build an official template for a country that has a standard lesson-plan format. AI copy-paste costs nothing. Use a free plugin to bring in users, and sell exam papers and Word export as a one-time purchase. Time screen-recording videos for the back-to-school season.
    Nobody knows about it yet · Distribution playbookTiming or platform eventDidn't break out · 356 users · rating 5.0(2)
  42. Jijingyun copied the model that worked on Temu (100k users), namely "free plugin + seller groups + paid parent platform," directly onto Coupang. It coincided with Coupang lowering barriers to recruit Chinese sellers, while Chinese-language tools were still missing. But the pool is small and growth is slow.
    How to copy it: Don't just build a single Coupang extension. Learn its pipeline: watch which platforms are recruiting Chinese sellers, and grab the "X product picker extension" keyword before Chinese-language tools show up. If you really want to build for Coupang, focus on the parts it skips: Korean localization and profit calculation.
    Nobody knows about it yet · Distribution playbookRelies on resourcesTiming or platform eventDidn't break outcoupangshuju.com · 713 users
  43. After US fall semester starts, SmartBook assignments arrive with dozens or hundreds of concepts, and students want to save those hours. It took the top spots for "McGraw Hill Connect AI solver" with 43 long-tail search pages, and it goes one step further than screenshot-based rivals by "clicking through for you."
    How to copy it: Don't build another answer-helper extension. Copy the playbook instead: pick an online system that users are forced to use every day, has a bad experience, and whose terms allow third-party extensions. Build for that one platform only, do in-page automation, and roll out a set of long-tail search pages written in the words users actually use.
    Nobody knows about it yet · Distribution playbookThe product itselfTiming or platform eventsolvex.help · 570 users · rating 5.0(2)
  44. In 2026 May, "have AI hand over HTML, not markdown" took off, and these files get dropped into Drive and email, but Drive has only shown source code since 2016. The name is exactly what people search for, so store search alone adds three to five users a day.
    How to copy it: Don't build the same extension again. Move it to Outlook, Slack, Notion, OneDrive, or other platforms and file types. Keep the extension free, add "one-click share link" inside it, and charge for private links, version history, and custom domains. Spell out on the store page why the platform falls short and why yours is safe.
    Nobody knows about it yet · Timing or platform eventDidn't break out · 410 users · rating 5.0(1)
  45. Throughout 2026, every vendor switched to a 5-hour limit plus a weekly cap, and having your quota cut off suddenly is a widespread pain point. It gets a steady trickle of search traffic from store keywords, store listings in 55 languages, and "how to check X usage" guide pages. September saw a few small group-chat shout-outs, but nothing close to going viral.
    How to copy it: Don't build an all-in-one dashboard covering many tools on one screen. Watch niche AI coding tools that just launched or changed their pricing. Be first to build a quota extension for one of them and post in its community. Or build for the side where people pay: team usage tracking and month-end bill forecasting.
    Nobody knows about it yet · Distribution playbookTiming or platform eventDidn't break outmyquota.ai · 695 users · rating 5.0(9)
  46. The same-name global version was removed from the store. This shared-account backup copy became the only installable IG Sorter, capturing old users and "IG Sorter / Sort Feed" search traffic.
    How to copy it: Don't build another Instagram sorter. Copy the playbook: keep a duplicate of the product on another developer account, put the full category keywords in the title, give single exports away free and charge for bulk exports. Then build similar small tools on newer platforms that aren't crowded yet.
    Nobody knows about it yet · Timing or platform eventDistribution playbookpei3pei3 · 7,000 users · rating 5.0(21)
  47. It hasn't really taken off: three to five new users a day, from cross-links on the publisher's site, store related recommendations, and the fact that "audio cable" is itself a search term. The most enthusiastic users are students using it to troll online classes on school Chromebooks.
    How to copy it: Don't just copy the generic virtual mic. Take its microphone injection technique and its habit of naming products after search terms. Build a sound board for Chromebook students that raises the volume and gets around noise suppression during online classes. Make money with sound packs and in-app voice-changer purchases, and pull in users with prank short videos on TikTok and YouTube.
    Nobody knows about it yet · Didn't break outRelies on resourceswebcameffects.app · 554 users · rating 4.333333333333333(6)
  48. The new extension's growth is mostly existing customers moving over: after Google pulled the old one, paying users had to reinstall the new one. The old extension reached 5000 users by speaking Spanish, charging $15 flat, and publishing 191 Spanish YouTube tutorials and comparison articles.
    How to copy it: Don't go after Whato itself. If you know a market where no big local-language player exists yet, copy its early moves: use a white-label engine with a native-language brand, make native tutorials and comparison articles, and only build features unlikely to be flagged as violations. Keep accounts and payments outside the extension, and have a backup developer account ready.
    Nobody knows about it yet · Distribution playbookRelies on resources · 699 users · rating 4.769230769230769(13)
  49. After Grok's free video was tightened in the first half of 2026, faceless long-form creators moved to the free Qwen. The same author had already taken the same extension to 100k users each on Flow and Grok, so copying it to Qwen costs almost nothing, and the store's own extensions cross-promote each other.
    How to copy it: Don't copy the Qwen version. Copy the playbook: build a batch automation template. Watch for generation platforms that just launched, are free on the web, but only produce one clip at a time, and that he hasn't covered yet. List within the first one or two weeks. Get users through store search and by teaching small YouTubers how to make videos for free.
    Few people know about it yet · Distribution playTiming or platform eventTruong Nguyen · 6,000 users · rating 5.0(86)
  50. Chrome shows a red warning bar on pages that use XSLT, linking to the store's search results for "XSLT Polyfill." This extension puts that phrase verbatim in its title, and its description, screenshots, and ratings beat the official one's. So it ranks #1 and catches the traffic the platform sent.
    How to tell Don't chase this one, copy the play: watch platform deprecation timelines, look for events where the official way out is "install something from a store" and the official option is bare-bones, and ship 6 to 8 weeks before the cutoff with a title that grabs the exact term the platform names. The closest opening right now is Edge, where XSLT is only being shut off in December.
    Nobody knows about it yet · Timing or platform eventDistribution playbookseokadabra.com · 40,000 users · rating 4.714285714285714(14)
  51. Not really a hit yet: Vietnamese make-money-online and crypto farming circles want to boost engagement and warm up accounts on X. It packs into one free extension what others split across five plugins, stuffs the title with search terms, and grows slowly through store search and community word of mouth.
    How to copy it: If you're already in a country's faucet or make-money-online scene, you can use its structure to build a free suite of tools in the local language. Use it as the entry point for group invites, paid upgrades, or done-for-you services. Don't count on the extension alone to make money.
    Nobody knows about it yet · Didn't break outThe product itselfDistribution playbook · 343 users · rating 5.0(7)
  52. It isn't really taking off yet: a batch of five-star reviews landed in the second week after launch, daily ratings went from 9 to 24, and it got store-search traffic from a 4.9 rating and a name stuffed with keywords. Then on 10-16 another single-day jump of +175 had no traceable source. Since then it has added single digits to a few dozen a day.
    How to copy it: Don't build another English manga translation extension. Take its two approaches: run detection, OCR, and image cleanup on the user's own computer so the server only pays for text translation, and use programmatic SEO built on "title + minor language" with local payment methods. Apply both to an image-plus-text use case that isn't crowded yet.
    Nobody knows about it yet · Didn't break outDistribution playbookmanhwave.com · 601 users · rating 4.916666666666667(24)
  53. At launch it caught the TikTok traffic built by the same team's Magister version (study creator 164k views, its own launch video 60k views). By late October the team had stopped updating, and a competitor's viral video used "cijferreveal" as the name of the mechanic, so when students searched the store for that term, they found this product with the exact name (inferred).
    How to copy it: Don't go into the Netherlands again. Go to grade systems in other countries that don't have a plugin yet, such as Smartschool, Librus, Pronote, and WebUntis. Build a read-only, lightweight version whose name is the local search term. Before launch, post a demo video, and after launch, post daily on TikTok.
    Nobody knows about it yet · Timing or platform eventDistribution playbook · 2,000 users · rating 4.666666666666667(6)
  54. It never really took off in the store, and users stopped after 1,000. What made money was localization: VietQR bank transfer, one-time payment with no renewals, Q&A in Zalo and Telegram groups, plus desktop multi-account support, watermark removal, and automatic CapCut assembly.
    How to copy it: Don't build another Flow bulk plugin. Copy its selling approach: find a minor-language market where the English tools are already a mess and locals struggle to buy them. Use local payment methods, a one-time purchase, and support through a chat group. Then add a bot that turns a product link back into a finished video.
    Nobody knows about it yet · Distribution playbookTiming or platform eventDidn't break outveobulk.com · 1,000 users · rating 4.808510638297872(47)
  55. It didn't take off on its own: the portal is slow and changed its rules. After the leader, SK ZONE, listed at the end of July, several Hindi CSC tutorial creators pulled the niche along. This one followed three weeks later and picked up about 1,000 overflow users from store search and related recommendations, then stopped growing.
    How to copy it: Don't build another Bihar RTPS tool. Pick a state-level permit portal where no plugin exists yet and the table is long and the site is slow. Be first to list after it redesigns, and ask local YouTubers who make CSC tutorials to film a demo.
    Nobody knows about it yet · Didn't break outTiming or platform event · 1,000 users · rating 3.6666666666666665(3)
  56. Vietnam moved to a two-tier local government system in 2025 (July), changing commune document formats entirely, while higher-ups were pushing "use AI". The training company FunEdu took agency training money to rural communes, installed the extension in class, and added attendees to Zalo groups, so users grew steadily by about a thousand every two or three weeks.
    How to copy it: Don't build another one in Vietnam. Look for other groups who are frustrated by rigid formats and whose employers are pushing AI. Attach a prompt pack to free web-based large models, distribute it through employer-funded in-person training, and keep users with professional community groups.
    Nobody knows about it yet · Distribution playbookTiming or platform eventThe product itself · 4,000 users · rating 5.0(5)
  57. Suno's official limit is 20 downloads per month, so the demand was created by the platform itself. The developer first used a bot to solve batch downloads and compilation for people making AI-music YouTube compilations in the Russian-speaking market; the extension is just a second entry point, catching organic store search with keyword-based titles.
    How to copy it: Don't build another Suno downloader. Copy its rhythm: watch for announcements that AI platforms are tightening exports. Before the change takes effect, launch a Telegram bot and post in a minor-language community where you already know people. Do the extra step for users yourself, then wrap the same backend in a Chrome extension and sell the heavy features as a lifetime one-time purchase.
    Nobody knows about it yet · Timing or platform eventDistribution playbook · 524 users · rating 4.333333333333333(6)
  58. It isn't really hot. It just holds the search term "download Avito photos" on the Chrome Web Store and Google, a term nobody else has dedicated an extension to, and it brings in about 4 people a day organically.
    How to copy it: Don't build on Avito again. Find other large local sites and add a gap around one specific action. Put out a few per week, and only add paid features on the one that naturally grows to a few thousand users.
    Few people know about it yet · Distribution playNot yet proven · 970 users · rating 5.0(2)
  59. The admin already had a Bengali "side income" Telegram community of over 10,000 people, where the tool had been sold for more than half a year. After September moved it to the Chrome Web Store, existing users upgraded en masse, and installs across multiple computers per person pushed it to 20k within 4 weeks.
    How to copy it: Don't copy this plugin. Copy the direction: on the worker side of piece-rate crowdsourcing platforms (CAPTCHA solving, labeling, microtasks), find task types that AI can already handle. Build speed-up tools and sell them to workers monthly. Distribute through local-language side-income communities.
    Nobody knows about it yet · Distribution playbookTiming or platform event CaptchaⱮaster · 20,000 users · rating 4.928571428571429(14)
  60. PW students commonly speed through courses, and the native player caps at 2x and degrades quality. In August the author renamed it "Enhancer for Physics Wallah," so a store search for the platform name matches only this one. Add exam-prep subreddit posts and a review prompt after 1 days installed.
    How to copy it: Don't build PW again. Switch to a niche platform with many users and a weak web player, such as other online course, corporate training, or certification-exam platforms. Rebuild it around that platform's player using open-source speed control and silence-skipping code. Title it "Enhancer for [platform name]" and emphasize open source, minimal permissions, and no account bans.
    Nobody knows about it yet · The product itselfDistribution playbookDidn't break outenhancerforpw.vercel.app · 1,000 users · rating 4.866666666666666(87)
  61. Instagram only lets you unsend messages one by one, and people who've broken up, regretted a message, or deleted their account keep searching for a way to do it in bulk. The founder's own TikTok tutorial on "delete all DMs at once, on both sides" hit 146k views. Combined with strong trust-building and a 4.8 rating, it grew slowly to 1,000 users, but never really broke out.
    How to copy it: Don't crowd into the spot Instagram just pulled back from. Use its structure instead: look for other bulk operations the platform deliberately doesn't offer, paired with an emotional use case. Or localize into another language: run locally, back up before deleting, and sell "fear of being caught" as the paid feature. Sell a one-time short-term pass, and get users by making search-friendly TikTok tutorials yourself.
    Nobody knows about it yet · Distribution playbookDidn't break outunsay.me · 1,000 users · rating 4.785714285714286(28)
  62. It never really caught fire: users came mainly from the author posting in Filipino developer and musician groups, plus a recommendation from a Filipino programming blogger. A promotion in late October pushed it to 2,000, but people who installed it stopped using it within a week.
    How to copy it: Don't build a fuller version of the same thing. Fill the gap it leaves: target a niche audience like worship songs or pop songs in one language. Or turn each recognition result into a public "song name + chords" web page to collect search traffic, and let the extension just keep people around.
    Nobody knows about it yet · Distribution playbookTiming or platform eventDidn't break outchordlens.app · 487 users · rating 5.0(19)
  63. ss.lv only shows the current price, and buyers of cars and flats have long wanted to see price-change records. It's the only one embedded in the listing page that covers cars and is still being updated. The author posted once on r/latvia and got 275 upvotes, growing from 2 users to 177 in two weeks, then built features from the comments and went back to post again.
    How to copy it: Don't build on ss.lv again. Pick a monopoly listing site in another country that shows only the current price and has a similar plugin that isn't being maintained. Scrape two or three months of data first. Then release an embeddable plugin, post on local forums, and trade the full history and alerts on your own site for sign-ups.
    Nobody knows about it yet · Distribution playbookThe product itselfadsnap.lv · 313 users · rating 5.0(5)
  64. In 2026 May Ozon changed copy complaints to one-by-one submission with SKU pairing, which big stores couldn't handle manually. It grew by way of paid users of its main product, Instagram "DM a keyword and get a free complaint service" lead-gen, and the fact that most rivals aren't in the store, making it the most-used one in the store.
    How to copy it: Don't build another standalone plugin to find copies on Ozon. Use its playbook: when a platform pushes review work onto sellers, automate the repetitive labor with a plugin. Hang it on a seller tool you already have, require login, and list it properly in the store. Then acquire users with short videos that hit the pain point directly, plus a private-message keyword.
    Nobody knows about it yet · Timing or platform eventDistribution playbookRelies on resources · 480 users · rating 5.0(1)
  65. India reopened tourist visas for Bangladeshis in Jun 28, then from Jul 1 switched back to assigning slots in submission order, so faster form-fillers get earlier slots. The author built 75k views on Bangladeshi-language visa explainer videos and pinned the plugin link in the top comment.
    How to copy it: Don't chase this category, which is already packed. Wait for the next government portal to change its policy, then build a form-filling tool that serves only that one form. Charge a few cents per use from a local wallet, and attach high-priced paperwork you can sell later. Get users with local-language videos about the policy changes and error messages.
    Nobody knows it yet · Timing or platform eventDistribution playDidn't break outvisa.flyticket.com.bd · 552 users · rating 4.0(8)
  66. Vish, the founder of a small Dutch team behind ecom.beer, used his own Instagram account to shoot the hook "half of ad libraries aren't ecommerce" eight times over. Viewers were told to comment "extension" to get the link, the website collected emails first to catch phone traffic, and store-related recommendation placements added more. Together that reached 2,000 users.
    How to follow Don't build a copy. This space already has free supersets shipping new versions nonstop. Copy its promo play: find a manual, repetitive web task your own circle does by hand and turn it into a single-feature extension. Post one hook over and over, have people comment a keyword to get the link by DM, collect emails first, and use the extension to funnel people to the paid service that actually makes money.
    Nobody knows it yet · Distribution playDidn't break outgetecomfilter.com · 2,000 users · rating 4.571428571428571(7)
  67. Meta launched Muse in Sep 8 with no official batch entry point. The developer applied the same code, already validated on Grok, Flow, and Meta AI, within three weeks, and used the related slots of his other plugins, his website, and YouTube tutorials to bring in the first users.
    How to follow Don't just build a Muse clone. Copy its pipeline: write a batch-generation core that isn't tied to any one platform. Each time a new AI generation platform launches (especially regional ones Muse doesn't cover yet), ship a single-platform "Auto X" extension within three weeks, then drive volume with tutorial videos and an all-in-one subscription.
    Nobody knows it yet · Distribution playTiming or platform eventNeeded resourceskylenguyen.me · 2,000 users · rating 5.0(5)
  68. It hasn't really taken off: it adds a steady 8 to 10 users a day, driven by a store title stuffed with search terms and a website with a dozen SEO and competitor comparison pages. The product itself is no different from its peers.
    How to follow Don't build another Meta spend extension. Swap in new data sources: pull the transparency data hidden in the Google, TikTok, and LinkedIn ad libraries onto the page and use it to attract users for free. Charge for the daily history the platforms don't keep and for alerts.
    Nobody knows it yet · Distribution playDidn't break out · 383 users
  69. It was originally built for Chinese users with Chinese as the default. In Oct 8 it switched to following the browser language, dubbing languages expanded from 18 to 75, and it added course sites and Edge. Only then could non-Chinese users use it, and the store title and official-site SEO pages all hinged on the phrase "YouTube dubbing extension".
    How to follow Don't build another generic YouTube dubbing extension. Borrow two moves: either build a tool that serves only one language, then go global in the same order, or pick a narrow learning use case and language pair. Make reading subtitles free and charge for speech recognition, and use use-case pages and comparison pages to win search.
    Nobody knows it yet · Product itselfDistribution playeardub.com · 1,000 users · rating 4.75(4)
  70. Paid courses and community materials are often distributed as read-only Feishu docs. Buyers want to save them locally or convert them to Markdown to feed AI. It captures this long-standing demand through store search, and its feature bundle is more complete than this year's similar plugins, so it's growing a bit faster, though still only a dozen or so new users a day.
    How to follow Don't build another Feishu exporter. Take the same export + attachment download + Markdown conversion bundle to a domestic paid content platform that isn't crowded yet. With each release, publish a dev log on your blog and WeChat Official Account to drive traffic back.
    Nobody knows it yet · Didn't break outProduct itselfTiming or platform eventyifs.cn · 717 users · rating 5.0(1)
  71. The name is the exact term users search for. The store page was translated into 55 languages, and in the first week of launch it hit 4.7 ratings. The older plugins around it hadn't been updated in years and had poor ratings, so it took first place in Chrome Web Store search, and people now arrive organically every day.
    How to follow Don't build another Instagram comment exporter. Use the same playbook on other long-tail tool keywords where the top result hasn't been updated in years and rates below 4. Launch several at once: keep the core features free and charge for the contact data they pull.
    Still little known · Distribution playbook · 1,000 users · rating 4.6923076923076925(13)
  72. It hasn't really taken off yet: Google shut the Photos API 2025 years ago and Photos still has no dedupe button, so people search the store for this need and it adds about 5–6 users a day from search. But the need is already held by older extensions with 20k and 10k users.
    How to follow Don't build yet another Google Photos duplicate finder. Either do what the leader gets wrong (scan huge libraries of tens of thousands of photos, manage iCloud too, and lead with how much paid storage you save), or go to other platforms that just closed their APIs and be the first extension there. Reply in community threads the week you launch, and ask users to rate you at the moment a cleanup succeeds.
    Nobody knows it yet · Didn't break outTiming or platform eventphotodeduper.com · 443 users · rating 3.0(2)
  73. Users find Speechify's subscription too expensive. This one uses open-source local models at near-zero cost, so it can sell a one-time purchase. It also does well on Word / Docs / PDF highlighting, which other extensions can't read. Traffic mostly comes from store titles that target "Read Aloud / PDF / Word" and from in-extension rating requests.
    How to follow Don't copy the read-aloud entry head-on. Take the wedge of "open-source local model + one-time purchase price" and apply it to other cloud subscriptions (transcription, OCR, translation). Or build what it does poorly: local speech for Chinese and Japanese text, a domestic document editor, or a version for students with reading disabilities.
    Nobody knows it yet · Product itselfDistribution play · 1,000 users · rating 4.578947368421052(19)
  74. The person behind it is a co-founder of Mindgrasp, who took the TikTok student sock-puppet account matrix they'd perfected there and applied it to job hunting. It rode the job-anxiety wave of 2026 fall recruiting season, with videos saying "I applied to hundreds of jobs with this and finally landed one," and the domain written right into the copy.
    How to follow Don't build another undifferentiated proxy-application extension. Copy its distribution play: find a scenario where users are anxious and willing to pay, seed a batch of persona accounts telling success stories, offer a free first use then convert to subscription, and label the ads properly as required.
    Nobody knows it yet · Distribution playNeeded resourcesTiming or platform eventusestandout.today · 1,000 users · rating 5.0(1)
  75. It hasn't really taken off: Gemini 3.5 Live Translate turned real-time dubbing into something that can be built in two weeks. It's one of thirty-some similar products that appeared alongside it, and it got its Chrome 1,000 users and Android 10K+ downloads through search articles and spreading across multiple platforms.
    How to follow Don't copy a generic dubbing extension. If you have an audience for a small language or a specific scenario, copy livdub, which lets users bring their own free Gemini key to bring cost to zero, and copy DubMog, which uses an in-browser local model as the free-tier fallback. Only do one language and one scenario.
    Nobody knows it yet · Timing or platform eventDidn't break outget.dubmog.com · 1,000 users · rating 5.0(2)
  76. Instagram added reposts without a delete-all, and mis-taps are common, so the need was created by the platform itself. The author launched early and wrote the title with the words users actually search. That put it in the top 3 in Chrome Web Store search, then similar side accounts cross-promoted it.
    How to follow Don't build another Instagram repost tool. Watch for the next feature a platform adds that you can only delete one item at a time. Claim the search terms first with a Chrome extension, ship a mobile app soon after validation, and recruit users with TikTok videos and invite codes.
    Nobody knows it yet · Timing or platform eventDistribution playDidn't break out · 485 users · rating 4.2(5)
  77. In 2026, Meta's August requirement that advertisers set up passkeys broke the account-trading scene's old "one line of data per account" workflow. This tool launched the same week. Every account sold in the store comes with a backup in its format, and buyers can't log in without installing it.
    How to follow Don't copy this extension. Copy its playbook: watch for the next platform that forces a new verification method, and build the tool that turns new credentials back into portable data ahead of time. Then get account-selling shops or ad agencies to write your format into their deliverables.
    Nobody knows it yet · Timing or platform eventDistribution playProduct itselfFBSTOCKER LABS · 6,000 users · rating 5.0(4)
  78. It never really took off. It just grew steadily: the name is stuffed with search terms, it uses the same category and synonym names as the paid leader, and the store put it in the leader's detail-page related recommendations at #1. All its users come from organic store traffic.
    How to follow Don't crowd into video enhancement. Take the same playbook to another niche: find a category with a paid leader where the related-recommendations slots are still empty. Build a free version whose features match, name it with same-category and synonym keywords, and list a Pro plan on your site to collect users first.
    Nobody knows it yet · Distribution playDidn't break outultraenhancer.com · 648 users · rating 5.0(4)
  79. It didn't really take off, it just slowly climbed to 2,000: the name uses the store search term directly, and the website has 97 "X to Google Forms" landing pages, while the same author's dozen-plus quiz plugins cross-promote each other.
    How to follow Don't follow this product. Learn its playbook: take one backend capability and point it at a target no big extension or built-in platform AI has claimed yet (like Microsoft Forms, Canvas, or Kahoot). Split it into a chain of extensions and long-tail landing pages that link to each other.
    Nobody knows it yet · Distribution playDidn't break outformgpt.co · 2,000 users · rating 4.333333333333333(3)
  80. It never really took off: the 800 users are almost all long-time paying JusDocs customers from a decade of accumulated business. The plugin is a hook pushing people up to the AI plan, and a standard feature added during Brazil's legal-AI boom.
    How to follow Don't build another Brazilian legal tool. Take the model of a locked-down public portal + thin extension for one-click import + proprietary templates and data behind a paywall for paying users only, and apply it to industry portals nobody has built for yet: tax, customs, public tenders. Ideally you already have a group of paying customers.
    Nobody knows it yet · Needed resourcesTiming or platform eventDidn't break out · 808 users · rating 5.0(7)
  81. Unified email migration, school-year enrollment, and lower-secondary exam registration all landed on top of each other, and the free tools only shipped to Edge / Firefox, so it's the only one in Chrome Store's related searches.
    How to follow If you hold a frontline government job and have real accounts on a government portal, find a portal that just got a redesign or a new mandatory process. Build the most painful batch write-back step before the official rollout. Claim the job title as a store search term, promote in peer groups, and sell activation codes over WhatsApp.
    Nobody knows it yet · Timing or platform eventProduct itselfDistribution play · 590 users · rating 5.0(7)
  82. The free original already proved teachers want a quiz export. It rode a platform rename, used both the old and new names for search, and kept pulling in a dozen or two users a day through the same developer's 5 extensions, a few keyword sites, and self-written charts.
    How to follow Don't build another NotebookLM quiz exporter. Copy its playbook: find the next feature a platform can generate but not export, build a single-feature extension for it, and plug it into your own paid product.
    Nobody knows it yet · Distribution playTiming or platform eventDidn't break outnotebooklmquizexporter.com · 1,000 users · rating 5.0(2)
  83. The author originally maintained 6 small 치지직 extensions and had a level-21 veteran account on fmkorea. When the platform's 6/18 redesign broke all his extensions, he had them fixed the next day, then posted an update changelog every week (single post reaching up to 24k views), taking users from 치즈 나이프, the older tool that had stopped updating.
    How to follow Don't build an all-in-one extension for Chzzk. If you have a recognizable account on another live-streaming or community platform's forums, first build a few small single-function tools to gather users, then bundle them into a full suite. Serialize changelog updates in the forum every week, and be the first to fix things the day the platform redesigns.
    Nobody knows it yet · Distribution playProduct itselfTiming or platform eventlirpa · 10,000 users · rating 4.955223880597015(67)
  84. The official system's "quick prescription" dropdown is empty by default, so doctors have to fill each entry by hand. This extension takes that work off their hands, with no sign-up, no password, and no change to the prescribing workflow. Most likely users came through BeeCons's own community of young GPs.
    How to follow Don't copy this extension outright. If you're in a professional niche, look at your field's official portal for features that exist but have no content, such as templates or canned replies. Build an extension that runs only on that site and bulk-fills the content. Use your peer groups to get the first users, and put the money in a content pack outside the extension or an agency plan.
    Nobody knows it yet · Product itselfNeeded resourcesDidn't break out · 357 users · rating 5.0(1)
  85. It hasn't really taken off: it adds 9 to 10 users a day, mostly from related-extension recommendations on similar plugins' store pages and the "how to delete reposts on a computer" guide on its website. The two promo posts from a 8 creator with 2.13M followers in September (1.66M views combined) most likely drove traffic to mobile instead.
    How to follow Don't build another bulk-unrepost tool. Take the model of a free tier + weekly subscription + lifetime one-time purchase, plus invite codes that trade for extra quota when users post videos themselves, and apply it to a "one-time big cleanup" need on another platform that no one is seriously serving yet.
    Nobody knows it yet · Didn't break outTiming or platform eventDistribution playunreposter.com · 929 users · rating 5.0(1)
  86. It didn't really blow up: India reopened tourist visas for Bangladesh 2026-06-28, and hundreds of thousands of people had to fill in the same hard-to-fill form. It caught a bit of organic traffic in the store by launching at the right time and naming itself after the search terms people actually use.
    How to follow Don't copy this extension, and don't crowd into the Bangladesh lane. Learn from Autofill Pro's template: watch visa policy events, and build a form-filling tool for a newly opened visa corridor, sold to agents per use or per month. Have the founder promote it in local-language Facebook groups and on YouTube.
    Nobody knows about it yet · Timing or platform eventDidn't break out · 442 users · rating 3.4(5)
  87. The training institute iSkills put it into the table of contents for the new SEBT NEXT cohort; after the cohort started, students installed it about 7 thousand times in a month, and at the end of October students gave 414 five-star ratings in three days. The per-use pricing against Keywords Everywhere's annual fee is the selling point, but this round of growth didn't mainly come from it.
    How to follow Don't build another keyword extension. If you have a bootcamp or paid community, turn the one thing your students repeat every week into a tool, make it a standard part of the course, then push traffic outward with "XX alternative" comparison pages and directory sites.
    Nobody knows it yet · Distribution playNeeded resourcesKWScanner.com · 9,000 users · rating 4.986666666666666(481)
  88. The founder is a low-ticket buyer himself. He launched in his own WhatsApp members' group and asked members to leave five-star reviews. After 10 days on the store he had 1,000 users; later influencer posts and SEO brought no further growth.
    How to follow Don't build another one in Brazil or the Spanish-speaking market. If you're in another ad-buying circle without a local product-scouting tool, build one using local jargon and local "currently selling" data. Launch it first in your group, then keep acquiring users through courses and creator partnerships.
    Nobody knows it yet · Distribution playDidn't break outspyx.app.br · 1,000 users · rating 5.0(9)
  89. The company behind it runs a YouTube teaching channel with 39.5k subscribers. Four tutorials teaching beginners to make shopping shorts (about 230k views combined) and its paid courses all treat this tool as a standard step, and the inflection points in the user curve line up with the upload dates.
    How to follow Don't copy the extension. If you have a content account teaching people side hustles, turn the most annoying step of the course into a tool. The free quota should just cover the first assignment, and heavier use costs a monthly fee.
    Few people know about it yet · Distribution playResource-drivenTiming or platform event · 1,000 users · rating 5.0(2)
  90. It grabbed the name of OpenAI's official extension. After the official one was renamed, it held the store's #1 spot for "codex". Add Google Ads and scratch-card prize drawings in exchange for reviews (opening to 3% of users daily from 10-17), and ratings went from about 5 to 820 in a month.
    How to follow You don't need to follow this one. What's worth learning is watching for big-company product launches and renames, and shipping a companion tool named "product name + category word" right away to catch the search traffic. Also wire up your monetization (affiliate links or your own site) before you spend on paid acquisition.
    Nobody knows it yet · Distribution playTiming or platform eventmoshikporat · 30,000 users · rating 4.926829268292683(820)
  91. Vietnamese undergrad theses and student research need hundreds of survey samples that real people can't fill. It took the competitors' per-question, per-response billing, switched to a 89k VND unlimited-per-day pass, drew people in with TikTok videos about "where to find people to fill 300 samples" (20k views on one video), and then used a "five stars gets 150 free fills" campaign to break the store rating wall in two weeks.
    How to follow Don't enter Vietnam, which Survify and others already dominate. Go to markets like the Philippines, India, Turkey, or Latin America, where thesis programs require survey samples and local-language versions aren't done well yet. Copy the three-tier pricing (daily, weekly, lifetime) plus done-for-you service, get customers on TikTok in a local-student voice, and launch before thesis season.
    Nobody knows it yet · Distribution playTiming or platform eventautokhaosat.com · 2,000 users · rating 5.0(125)
  92. The author is a training instructor with an agent community and paid courses. He pushed the extension to his peers as a "give it away for an email" gift, and it reached 122 people within two days of listing. Reviews are full of people writing "thanks Leandro."
    How to follow If you already have an audience in an industry, copy this playbook: build a free extension for another country or another industry's website that produces client reports. Trade email addresses for install links, then move people toward your paid service.
    Nobody knows it yet · Needed resourcesDistribution playProduct itself · 379 users · rating 5.0(30)
  93. People who want to back up an entire Instagram account exist year-round. It does incremental sync, tidy folder and naming structure, and post-level selection in more detail than peers, and with store listings in 23 languages and several long-tail search pages, it naturally picks up a dozen or two users a day. It isn't catching fire yet.
    How to follow Don't build the Nth Instagram version. Borrow its playbook (free quota by number of accounts, one-time purchase plus monthly subscription, pricing in Indian rupees, "XX alternative" pages), and put it into a product you already have traffic for, or go after a major platform no one has claimed yet with full-account archiving.
    Nobody knows about it yet · The product itselfhasn't taken offnovabyteworks.com · 506 users · rating 5.0(4)
  94. ByteDance gives away top video models for free on Dola, and creators in South and Southeast Asia making monetized videos flocked in following tutorials. The developer listed a ready-made template within two weeks, used cross-promotion from its own 500k-user extension matrix, a name that is the search term, one self-made tutorial and a batch of concentrated reviews to build traction.
    How to ride it: don't build another batch-queue plugin for Dola; do the opposite. When a new free AI generation site starts a tutorial wave, read the comments first to see where users get stuck (here: the 30-second limit, watermarks, quotas). Put duration hacks, long-video stitching, and watermark-free downloads on the first screen, then offer a commission link to mid-tier YouTubers who take promo deals.
    Nobody knows about it yet · Timing or a platform eventDistribution playbookkylenguyen.me · 4,000 users · rating 5.0(30)
  95. It hasn't really taken off. Rivals only give free exports of 10–30 contacts, while Tooly is unlimited, so every review is 5 stars and users stick around. But it ranks only #7 to #10 for long-tail store terms and isn't in the top 10 for core terms, so organic search brings in only about seven or eight people a day.
    How to ride it: stop building WhatsApp export plugins. Take the playbook instead: give away everything core for free, charge once for heavy features only, ask for minimal permissions, and support offline contact-detail top-ups. Move it to Telegram, LINE, or Discord, which aren't crowded yet, and take card payments.
    Nobody knows about it yet · The product itselfhasn't taken offtooly.contact · 559 users · rating 5.0(13)
  96. The policy change replaced the portal and made all old tools obsolete. The author is a data-entry operator himself, with ten years of peer blogs, YouTube, and WhatsApp circles. A tutorial appeared the day after launch, and it spread by word of mouth among peers.
    How to ride it: if you have real accounts on government systems and a peer network, go to the Hindi-speaking states it doesn't cover, or to another government or platform portal that just got a redesign. Build the single most painful bulk task first, then push it with local-language YouTube tutorials and district-level accounts.
    Buzz in small circles · Timing or a platform eventRelies on resourcesThe product itselfvisiontech.com.in · 1,000 users · rating 5.0(22)
  97. Listed three days before the Gemini Omni video model launch, catching demand for video watermark removal. When Google switched off the watermark in August, non-Ultra users in India, Korea and Vietnam were left out; it reached them with multilingual YouTube ads and tutorials from small South Asian creators.
    How to ride it: don't build another watermark remover. Copy the playbook instead: launch the same week a new model drops, one landing page per model name. Watch where big vendors force limits by country or price tier, translate one video into several languages, and only spend on the countries where that works.
    Buzz in small circles · Timing or a platform eventDistribution playbookThe product itselfAdeel Ahmad · 50,000 users · rating 4.506666666666667(174)
  98. The creator is a Hindi-language AI influencer with 200k followers. The day after launch he posted two Reels about "keep using Claude after the limit", 3.2M views combined, and pulled in traffic with "comment for the link". Then he used "leave a review for 1 days of membership" to push the rating count to 5× that of comparable products.
    How to ride it: don't copy this plugin, copy the playbook. If you already have short-video reach, right after a platform tightens its rules, ship a small tool you can explain in one sentence. On launch day, post several cuts and use comment keywords to auto-DM people who come in.
    Buzz in small circles · Distribution playbookRelies on resourcesTiming or a platform eventdivykairoth · 100,000 users · rating 4.591911764705882(2711)
  99. The developer makes AI short dramas in the Philippines and has his own page. He uses that page to show samples and new niches, which get shared into Philippine faceless-channel Facebook groups (one post with 273 shares). It works on phones, is priced at $4 a month in pesos, and accepts GCash.
    How to ride it: don't copy the plugin features, copy the playbook. Someone who has already grown an AI content channel in one language turns their own production workflow into a tool, then sells it to imitators through their own pages and local side-hustle groups. Local wallets, a few dollars a month.
    Buzz in small circles · Distribution playbookThe product itselfTiming or a platform eventdenrod.dev · 2,000 users · rating 4.923076923076923(26)
  100. In 2025, Naver cut off the external tool channel for estimating blog ranks; 블덱스, Korea's top index site, was forced to shut down and redesign, and 3.0 moved to "read the user's own back-end data." The extension's 4,000 users are 1.9M self-reported, mostly longtime users of the parent site led over by the "my blog analysis" feature.
    How to ride it: don't copy the Korean version. Do the same thing on platforms where creators have analytics but the platform offers no interpretation (RedNote, Douyin Creator Center, Tistory, etc.). The website is the main interface, and the extension only uses the user's logged-in session to pull stats. Sell a monthly AI report, and move in when the platform cuts its API or an old tool shuts down, taking its users with you.
    Buzz in small circles · Relies on resourcesTiming or a platform eventDistribution playbook · 4,000 users
  101. The paid Dripwriter was pushed viral on TikTok/IG through student accounts but never built a Chrome extension, so Origin took the same name and became the only one findable in the store. In Aug 8, a creator with a 88K following who makes "free alternatives" posted a Reel, right as late-August school started and Origin shipped its expansion to Canvas and Packback.
    How to ride it: don't build another auto typer. Take the playbook: find a paid tool that spends heavily on short-video ads but isn't on a particular channel yet. Launch a free alternative on that channel with the original brand name in the keywords, then get alternative-review creators to film a cold-start video together.
    Buzz in small circles · Distribution playbookTiming or a platform eventdripwriter.org · 4,000 users · rating 4.666666666666667(9)
  102. The founder's day job is editing short videos. He films TikToks of "I know where you live before you even speak," with single videos getting 10–260k views. Over four years he built a paid Discord of 17.5k people; after the store launched in October, the old users migrated over in bulk.
    How to ride it: don't build another plugin that locates strangers. If you make short videos and play on a youth platform, find a platform that withholds some kind of information from users, and build an overlay tool that doesn't touch privacy. Film the tool's effect as your content, then grow it with Discord login, local prepaid-balance payments, and a referral code that pays a cut.
    Buzz in small circles · Distribution playbookThe product itselfRelies on resourcesundfnd.eu · 4,000 users · rating 5.0(25)
  103. It caught the 'write .md for agents' wave, and the demo is easy to film. What really pushed it up was developer creator RammCodes' 'free gadget' video posted across X, IG, LinkedIn, and FB in Oct 23, and the repost accounts that followed.
    How to ride it: don't copy the Lighthouse version. Swap in another tool (Sentry, Search Console, security scanners) and build the same "output converted into an agent brief" plugin, with no sign-up and no API key. Record a 30-second demo, then find developer bloggers and post it across every platform on the same day.
    Buzz in small circles · Distribution playbookTiming or a platform eventlighthouse-md.com · 934 users
  104. The author already had an Amazon Influencer extension with 10k users and over 20,000 followers. When Trybe got hot, he published a tutorial to bring viewers over first, then folded the extension into the existing subscription, so viewers converted straight into users.
    How to ride it: don't build another Trybe plugin. If you have an audience in a creator community, wait for the next new monetization platform to heat up, then follow this order: tutorials with referral links, features added to an existing tool, and then a split into a standalone plugin with a subscription.
    Buzz in small circles · Distribution playbookTiming or a platform eventRelies on resourcesoinkforinfluencers.com · 813 users · rating 5.0(3)
  105. Meta doesn't disclose spend on commercial ads, so "your rival spent ₹7.8 crore in 30 days" screenshots work well as reels. The developer's own account plus a batch of small Indian marketing influencers pushing the same script blankets the market, with localized pricing and UPI payment. After the predecessor Adlens was flooded with bad reviews, it relaunched under a new name the next day.
    How to ride it: don't copy the sales-estimation plugin. Take its localized pricing and micro-influencer reel distribution, and sell an ad-intelligence tool that uses only real signals and labels confidence clearly. Target non-English markets outside India.
    Buzz in small circles · Distribution playbookadlenstracker2026 · 6,000 users · rating 1.7058823529411764(17)
  106. One of the founders is a resale influencer with 「11k followers and a paid resale community, so seed users are ready-made. Then give each UK resale influencer a first-month 8% off affiliate code to promote it, timed right as Crosslist stopped onboarding new Vinted users in Oct 2.
    How to ride it: don't build another Vinted plugin. If you have sellers from a secondhand platform in your circle, switch to a platform or country where the official back end is weak and nobody has localized. Start with bulk order handling, analytics, and inventory, features that don't get flagged as bots. Recruit beta users through seller groups and acquire customers by giving mid-tier creators referral codes that pay a commission.
    Buzz in small circles · Distribution playbookRelies on resourcesTiming or a platform event · 841 users · rating 5.0(20)
  107. In June Google released a model that turns speech straight into speech. Six weeks later it became a plug-and-play extension, with model costs paid by users' free API keys. Iranians who lacked Persian dubbing were brought in by dozens of YouTube tutorials.
    How to ride it: don't copy the all-in-one multilingual approach. Pick one language where dubbing and subtitles are missing and a community of free AI-tool tutorial creators already exists. Make it the best tool for that language, and in the first two weeks, get it into the hands of those creators.
    Buzz in small circles · Timing or a platform eventDistribution playbookThe product itselflivdub · 60,000 users · rating 4.56(81)
  108. The creator is an Arabic Free Fire editing creator with 150k followers, so the cold start cost nothing. The free version forces users to tag his name in their captions, so every video advertises it, spreading from the Middle East through Southeast Asia, Latin America and Europe.
    How to ride it: don't build another quality plugin. Use this playbook instead: a vertical-niche creator, a small niche tool the community actually needs, a free version that requires an @-you attribution, payment via DM, and presets and courses. The prerequisite is that you already have followers in a small-language or vertical creator community.
    Buzz in small circles · Distribution playbookRelies on resourcesTiming or a platform eventtikosystem.com · 3,000 users · rating 2.3333333333333335(3)
  109. The temple releases tickets once a month on a fixed day and they sell out in minutes; typing 12 ID digits by hand is too slow. The developer posted a free plugin with a real screen recording in the booking subreddit just before the Sep 24 drop, and weekly users grew 8×.
    How to ride it: don't crowd into TTD. Take the playbook: find a booking scenario where slots open on a fixed date and the forms are long. Build a compliant tool where users paste and submit their own info, then post real stories and screen recordings in the communities where that audience gathers before the slots open.
    Buzzing in small circles · Distribution playbook Timing or platform event · 2,000 users · rating 5.0(10)
  110. The author is an admin for Bratishkin, a major Russian streamer. The streamer uses it on stream himself and shows off the cosmetics, and clips carrying the referral code get cut and shared out. The timing also helped: 7TV was blocked in Russia, and its server mirror lets people see the emotes without a VPN.
    How to ride it: don't copy this plugin directly. If you want in, first find a streamer willing to use your tool on live broadcasts. Offer local-language support, free emote merging, and paid badges and name colors. Turn the locally blocked service into a mirror, and sell it as a subscription feature.
    Buzz in small circles · Relies on resourcesTiming or a platform eventDistribution playbookEbloid Corp. · 10,000 users · rating 4.746666666666667(85)
  111. The product is about the same as a dozen similar ones. It pushes red envelopes, paid KOLs, and a referral link offering $1 on signup, which got Indian and Pakistani make-money-online YouTubers to put out dozens of tutorials in mid-October.
    How to ride it: don't copy this plugin. Learn its cold-start: a meme plus a time-limited red packet, 1–2 paying Indian AI creators, and a sign-up invite link for make-money bloggers that gives a small bonus. Apply it to your own "send small money" product, and line up advertisers or task providers before launch.
    Buzz in small circles · Distribution playbookGokhan Celiker · 70,000 users · rating 4.24(612)
  112. Every video a free user posts automatically carries its name in the description, and an editor's audience is mostly editors, so 200k videos equals 200k free ads. Add a 170k-member Telegram channel, and three weeks after the old listing was taken down from the store, users were brought back to the new one.
    How to ride it: don't build another upload-method plugin. The lane is already packed. What's worth copying is the playbook: build a tool that makes users post their finished work to short-video platforms. The free version automatically adds a short tag to the description, the paid version removes it, and community and payments live on Telegram or Discord.
    Buzz in small circles · Distribution playbookTiming or a platform eventEditing News · 20,000 users · rating 4.473684210526316(19)
  113. The developer already ran a 200k-follower pilgrimage Instagram account and a TTD info site. On Sep 23, the day before a ticket release, they posted a reel inviting people to "comment chrome for the install method"; within two days users grew from a few hundred to about 4,000. Free, multilingual, and quick to iterate after the block put it at the top of ratings among a pile of paid or rough competitors.
    How to ride it: don't build the 25th TTD plugin. If you already run a content account that reaches people who need to grab slots, build a free plugin that solves only that one form. Promote it from your account the day before each opening.
    Buzz in small circles · Distribution playbookTiming or a platform eventRelies on resourcestelugunewsblog · 6,000 users · rating 4.78(50)
  114. The game and anime edit community treats image quality as status. "Which one is clearer when the same clip is uploaded twice" comparison videos carry their own traffic, and the founder's own TikTok account gets hundreds of thousands to millions of views at zero cost. A free weekly credit allowance plus a $4.99 low-priced subscription and a split through local Southeast Asian wallets brought people in. The extension itself has been flat for three months; all the growth is on the web side.
    How to ride it: don't build the thirteenth "XX Method". Copy the playbook: use a free effect detector as the hook, and pick a need whose results can be shown as a before-and-after. If you do enter this space, build a neutral multi-platform quality checker that doesn't bypass anything.
    Buzz in small circles · Distribution playbookhasn't taken offtikhaze.com · 1,000 users · rating 5.0(11)
  115. Early October was right at the first round of grade releases after school started, with EA FC 27 just launched. The old TikTok "grade pack-opening" meme was pushed back into the spotlight by a batch of similar extensions at once, and its name is exactly what students search for, so it caught that wave.
    How to ride it: don't build for the Netherlands again. Go where grade platforms are concentrated and nobody has built yet, like Belgium's Smartschool or Nordic school platforms. One plugin covers every local platform. Run a daily TikTok account with screen recordings, and ride each new results season. Treat it as distribution practice, not a business.
    Buzz in small circles · Distribution playbookTiming or a platform eventCijfer Reveal · 10,000 users · rating 3.652173913043478(23)
  116. It never went viral: launched at the end of 2024 on V2EX and as open source on GitHub, then spent two years shipping over sixty versions to keep up with platform anti-scraping changes. As more platforms were added and Feishu sync came in, users grew steadily from under 1k to 40k. The 10k of new entries after the old ones came down were migrated from existing users.
    How to ride it: don't build a second all-platform scraper. Go to platforms it doesn't cover or covers shallowly (Weibo, WeChat Channels, WeChat Official Accounts), or sell downstream: ready-made influencer databases and competitor monitoring sheets. Copy its acquisition: open-source v0, post to developer communities, and let the free version let operators write their own tutorials.
    Buzz in small circles · The product itselfDistribution playbookxisence · 10,000 users · rating 5.0(41)
  117. It sits in the two weeks around school start. The name and copy speak to one school only, and the author pulls classmates with "comment a keyword for the link" on Instagram plus a waitlist. Many student clones with similar features exist, but nobody has done distribution, and they all stall at tens to hundreds of users.
    How to ride it: if you're a current student, fork its open-source code for your own school and focus on one thing: "you won't miss it when a professor reschedules." Collect a waitlist with Reels in the week before the semester starts, and launch before the January winter term.
    Buzz in small circles · Distribution playbookThe product itselfTiming or a platform event · 1,000 users · rating 4.875(8)
  118. The creator is a YouTube channel owner whose viewers trust him not to scam them. From late August to late September he posted 4 videos in a row, repeatedly shouting "API ¥0, not a course sell, no Python". That hit right where Korean middle-aged and older bloggers had been burned by paid blog automation courses. The comment-key giveaway then pushed the videos into recommendations.
    How to ride it: if you have your own audience, take the approach of "borrow the user's logged-in AI web page and fill the local platform's editor" and port it to Japanese note/Ameba, WeChat Official Accounts/RedNote, or WordPress. Post it on your own channel, give away keys in the comments, film a video for each version, and monetize through ads that unlock longer use plus channel memberships.
    Buzz in small circles · Distribution playbookRelies on resourcesThe product itself · 5,000 users · rating 5.0(85)
  119. FACEIT's official demo viewing requires download, extraction and launching the game; it became a one-click action on the page. Over five months the developer shipped 15 versions, then in October got a boost from a Russian CS TikTok "must-have extensions" video (124k views) and Leetify's blog recommendation, growing from 6,000 to 10k.
    How to ride it: don't build another FACEIT plugin. Take the replay-review playbook (embedded in the plugin, server-side parsing, shareable links) to other competitive platforms where official replays are hard to use. Then follow its path: find local-language game short-video accounts and big review sites that feature tools like this.
    Buzz in small circles · The product itselfDistribution playbookTiming or a platform eventnofear · 10,000 users · rating 5.0(24)
  120. The Seller Country ERP already had a batch of users. After the plugin went live on the store, old users and new sellers installed it following the tutorials. On top of that, Chinese sellers' Ozon turnover more than doubled in 2026, and demand for listing tools surged.
    How to follow: Don't build another Ozon scraper plugin. If you want to learn from this, find a marketplace where Chinese sellers are just starting to pour in and no mature Chinese ERP exists yet. Build the backend first and charge for memberships, keep the plugin free as the entry point, and distribute through Bilibili tutorials, agents, and Taobao activation codes.
    Buzz in small circles · Relies on resourcesTiming or a platform eventDistribution playbook · 857 users
  121. The author is a swing trader with about 40k X followers and 7,000 Substack subscribers in the Indian trading scene. A tweet with a demo video in Oct 26 got 57k views and 1,200 bookmarks, pushing users to 540 in three days. The product turned a pile of one-way small plugins into full-platform interoperability, which is what kept people.
    How to follow: Don't do this in India as your second project. If you already have an audience in a trading community in another market, turn the "manual copy-paste every day" work there into a free plugin that works across all platforms, and promote it with demo videos from your own account.
    Whispers in the circle · ResourcesProduct itselfDistribution play · 753 users · rating 4.571428571428571(7)
  122. In 2025 December, Naver cut off Blogdex's blog index lookup. The team moved traffic from its parent site and bloggers from its in-house experience group to AI writing plus automatic publishing, then used usage vouchers to pay bloggers to write follow-up reviews on Naver.
    How to follow: Don't build another Naver publishing plugin in Korea. If you already have a pool of writers or merchants, build "AI writing + a plugin that publishes through the logged-in session" on a platform that only offers a web editor. Give it to your own people first, then trade free credits for reviews that boost your visibility in the platform's search.
    Whispers in the circle · ResourcesDistribution playTiming or platform eventDidn't take off · 1,000 users · rating 5.0(10)
  123. The author is a Pakistani Etsy instructor who has trained thousands of students. The course teaches whatever tools the product offers, so students install it and leave five-star reviews. Local payment options also caught newcomers who don't have a US-dollar credit card.
    How to follow: Only instructors who already have students or followers should copy this. Turn the manual steps from your course into a free plugin, add a website subscription starting at $1, offer a manual activation payment option for local wallets, then repeat it on another platform or in another country.
    Whispers in the circle · Distribution playResourcesrankkw.com · 5,000 users · rating 5.0(497)
  124. The author's own 200k-subscriber service channel published a tutorial three days after launch (47k views). Then Telegram copy got cyber cafe and service center operators sharing it with each other, and the store was asking for five stars in launch week. The portal was slow and kept dropping connections, and operators were refilling the same three duplicate forms for the same person every day.
    How to follow: Don't build another one in Bihar. If you have a channel in another Indian state's agent community, or can work with a government-services blogger, find a government portal nobody has built yet. Copy this feature set and fix it the same day any redesign lands. Keep the plugin free and make money from channel ads and services sold to operators.
    Whispers in the circle · Distribution playResourcesTiming or platform eventSK ZONE · 30,000 users · rating 4.775510204081633(49)
  125. The extension itself didn't take off; its users come from the free tier on the main site's pricing page. The main site took off because it turned 300M+ public case records into web pages, so when lawyers and litigants search a name they land on the site, and then it sells case-tracking alerts starting at ₹250/month.
    How to follow: Don't copy the plugin. Take the idea of "turn public but hard-to-search data into web pages that pull search traffic, then sell alerts" to a different data source or country. Wait until the official site rate-limits you before copying how it uses site credits to route through users' browsers.
    Whispers in the circle · Distribution playResourcesecourtsindia.com · 2,000 users · rating 5.0(2)
  126. Its sibling Dotti has been teaching dark-channel monetization for 2021 years, with a 25k-subscriber channel and a course ladder from R$37 to R$40,000. October it started pushing a paid version to students, and the extension went from a few dozen users to over a thousand in two weeks.
    How to follow: Don't build another standalone outlier plugin. If you know faceless YouTube teachers who already have paying students in Spanish, Indonesian, Vietnamese, or similar languages, offer them a revenue-share deal: a companion free plugin plus a monthly web library. Their videos and communities bring all the customers.
    Whispers in the circle · ResourcesDistribution playdottifinder.com · 1,000 users · rating 5.0(15)
  127. Coupang's flagship AI auto-ads spend money where clicks are high and sales don't follow. The company behind it is the e-commerce education brand 시크릿크루; its courses teach the demand side thoroughly, and members, YouTube viewers, and referral links turn directly into paying users.
    How to follow: If you have seller audiences, build a tool in the local language for platforms like Shopee or Naver Smart Store that don't offer ad APIs. It finds wasted spend and writes changes back to the seller backend in one click. Build content and affiliate commissions first, then the tool. If you have no audience, skip this.
    Whispers in the circle · Distribution playResourcesTiming or platform eventsecretpang.kr · 325 users
  128. The game just launched and drops can be cashed out in USDT, so "where to farm" is basically "how much you earn per hour." It's the first tool that gets the numbers right and is built into the game, and Brazilian game streamers pass it to viewers with a !pokehunt command.
    How to follow: Don't build another one for PokeIdle. Watch for the next browser game that just launched with complex stats and drops you can cash out. Within 2–4 weeks of launch, ship a locally running embedded calculator. Get users through streamer commands and Discord, then move toward paid automation.
    Whispers in the circle · Timing or platform eventProduct itself · 8,000 users · rating 5.0(15)
  129. Meta moved video generation from meta.ai to vibes.ai, and overnight the tools that faceless-channel creators used for bulk video production stopped working. The author listed the extension the next day, under the name people would search for. Its 15 same-template siblings cross-promote each other, and YouTube tutorial creators in the French-speaking world and Brazil recommended it organically.
    How to follow: Don't go head-to-head with vibes.ai. Copy its playbook instead: watch free AI generation sites that are launching or migrating, and list them within three days using the same batch templates. Use generic search terms in the name, and get mid-tier YouTube creators who cover that site to link to you. Or build what it does poorly: take one story, split it into shots, keep characters consistent, and export widescreen video.
    Whispers in the circle · Timing or platform eventDistribution playTruong Nguyen · 50,000 users · rating 4.5(56)
  130. The "grade opening" meme has run on Dutch secondary students' TikTok for four years. This autumn, a Magister version extension and a few accounts pushed it into a major trend. Somtoday students had nothing to use at first, and this one launched in the first batch, with a name that exactly matches the "somtoday pack opener" people were searching for.
    How to follow: The Netherlands is crowded, so go where the same thing is still empty: Belgium's Smartschool (Dutch-speaking, with people asking in the comments of the same TikTok) or Germany's WebUntis. Copy the approach: keep it light, offline, and name it with the search term. Ship before exam week, when grade release drives the demand.
    Whispers in the circle · Timing or platform eventDistribution play · 6,000 users · rating 5.0(3)
  131. Two days before the 9-24 release, the developer posted a Telugu tutorial Reel that reached 1.11M views and asked people to DM "GOVINDA" for the link. When TTD blocked autofill extensions in October, he posted "we fixed it" the next day and gained another 188k views.
    How to follow: Don't build another TTD plugin. Pick a timed-drop scenario you know well. Before the drop opens, post tutorial videos on a local-language content account, and use comment keywords to game the algorithm. Have people follow you before they get the activation code, and turn those users into fans who send traffic to your main business.
    Whispers in the circle · Distribution playTiming or platform eventsandeep · 9,000 users · rating 4.0(5)
  132. "Upload methods" were the hot topic in clipping circles for 2026 years, and it caught that wave. More importantly, the extension adds its own link and hashtag to the end of every video caption by default, so every user who posts one runs an ad for it.
    How to follow: Don't copy the quality patch. It's saturated, earns nothing, and goes to zero the moment the platform changes. Copy the line instead: if your tool's output gets published publicly, add a default attribution and a real topic tag that users can turn off. Label the toggle "Keep on, support us."
    Whispers in the circle · Distribution playTiming or platform eventTikQuick · 6,000 users · rating 4.352941176470588(17)
  133. Someone building a faceless YouTube channel needs dozens or hundreds of images per video, and Flow only lets you click them one at a time. Among a crowd of competitors that charge monthly fees, it competes on free and unlimited usage. The developer makes YouTube tutorials inside the creator community himself, and one video was enough to get it going.
    How to follow: Don't build another Flow bulk plugin. Copy its structure: first have a product that can take subscriptions, then build a free plugin as the entry point, and make tutorials yourself in the target community. If you must enter this niche, focus on the reliability people complain about most: auto-retry on failure, consistent numbering, and automatic splitting of long scripts.
    Whispers in the circle · Distribution playTiming or platform eventGörkem Uysal · 8,000 users · rating 4.36(174)
  134. EA's end-of-year FC 26 event made new cards come without playstyles, so players had to add them one by one. A player-developer released a free one-click script, replied to complaint threads to drive traffic, and listed on the Chrome Web Store in August. That timing caught the install spike when the FC 27 web app opened in September, and small Brazilian, Spanish-speaking and Polish creators spread the tutorials from there.
    How to follow: Don't build another all-in-one SBC solver. Watch for the new problems EA creates each time it changes the rules. Within a few days, ship a free mini tool, reply on the complaint threads, and send it to small non-English creators. Get listed before next September's launch. Or take this playbook to another game with a web version and a clunky interface.
    Whispers in the circle · Timing or platform eventProduct itselfDistribution playfodder.gg · 20,000 users · rating 5.0(5)
  135. GHL can't export workflows as diagrams itself, so agencies delivering to clients have to stitch screenshots by hand. The author is a moderator of the Philippines GHL community and a 10k-follower blogger; one free video got 23k views and brought 227 users in the first week.
    How to follow: Don't build another GHL screenshot plugin. Switch to a SaaS with a canvas, where lots of agencies build things for clients and the vendor doesn't allow exporting the whole picture: Make, HubSpot, Salesforce Flow, and so on. Keep the free version to capturing clearly, and build the paid version around "hand it to the client." Then find a moderator or blogger in that community to promote it.
    Whispers in the circle · Distribution playResourcesProduct itselfkape.tools · 631 users · rating 5.0(7)
  136. Dutch students have hand-edited "grade pack opening" videos on TikTok for four years. In early October another creator's demo video lit the demand, and a week before the rivals listed, CijferPacks was first to put all three grade systems into one extension. Its own two TikToks then pulled in 170k views.
    How to follow: Don't fight for the Netherlands. Take the same idea to other countries' grading systems (Belgium's Smartschool, Germany's WebUntis, France's Pronote) or to mobile. Ship before the first round of results, then film your own unboxing videos for TikTok.
    Whispers in the circle · Timing or platform eventDistribution play · 20,000 users · rating 4.781818181818182(55)
  137. Every year the Full warehouse-slot dates get snapped up before Black Friday. It went live before the rush and was the first to do it. From Oct 3, two e-commerce teaching accounts co-posted Reels with it, each with a 8 discount code, and in two days users went from 0 to 608.
    How to follow: Don't crowd into Brazil's ML. Take the same playbook to other seat-grab scenarios that have to be done manually and peak every year: ML Full in other Latin American countries, Shopee warehouse intake, or FBA appointment slots. Launch 2 to 4 weeks before the peak season. Use exclusive codes from vertical bloggers to cold-start, put only a loss calculator on the homepage, and invest in customer support.
    Buzzing in small circles · Distribution playbook Timing or platform event · 2,000 users · rating 5.0(6)
  138. The author is a big name in the local SEO scene, using his six-figure Facebook group and "comment a keyword to get the link" posts to keep pulling in users. The category leader GMB Everywhere's free tier allows only 5 checks a month; this one is completely free, and its reports can be taken straight to clients to close deals.
    How to follow: Don't compete for the local SEO plugin spot. If you have an audience and a service in some industry, copy its structure: build a free, unlimited tool that replaces the older paid monthly plugins in that industry. Make the deliverable a report clients can forward, and collect payment through the services you sell on top.
    Whispers in the circle · ResourcesDistribution playProduct itselfhypetrix.com · 1,000 users · rating 5.0(9)
  139. It rode the wave after Google open-sourced DESIGN.md in April, the "let AI build the UI from your site" craze. The product opens a palette on click and launches Claude automatically, which makes it good for short videos. Developer creator RammCodes (500k followers) shared it organically once, and the author then posted "60→5000" to Reddit for another round.
    How to follow: Don't build another design extractor. Copy the conditions that got it picked up by creators: build the final step of "send straight into AI" on a newly popular format, make something you can demo in 15 seconds, pitch it to AI tool accounts proactively, and when it takes off, publish a build-in-public post right away. Don't charge a few dollars for a one-time purchase.
    Already public / widely discussed · Distribution playTiming or platform eventtudorbuildstools · 10,000 users · rating 5.0(7)
  140. Tencent's official account posted on X (208k views), Chinese-language circles published a month of tutorials first, and users of Tencent's own WorkBuddy followed along. OpenAI's Codex extension couldn't get into WeChat Official Account backends, while this one could; and every command-line user has to install the extension.
    How to follow: Don't build another general browser bridge. Build the layer on top of it: pick a Chinese platform backend (WeChat Official Accounts, Douyin, e-commerce), write a Skill that runs out of the box and open-source it to build your reputation. Make money from templates, setup services, and courses.
    Already public / widely discussed · ResourcesTiming or platform eventDistribution playwxg.prc.cpg · 70,000 users · rating 4.521739130434782(23)
  141. It hasn't really taken off: it gains about six users a day, driven by one developer's five extensions cross-linking each other, AI-mass-produced SEO articles, directory listings and Reddit self-promo, plus the 5.0-star rating that reviews helped inflate.
    How to follow: Don't compete head-on in the WhatsApp export red ocean. Copy its approach instead: one export engine, several platform entry points, and an SEO site feeding traffic in. Look for platforms with a web version where export is painful and the store only has low-rated tools, the way its Telegram version did.
    Already public / widely discussed · Distribution playDidn't take offmastros.online · 617 users · rating 5.0(71)
  142. Baremetrics founder Josh Pigford posted a tweet calling out a knockoff brand by name, 11.7M views. Then HN and a dozen media outlets followed, right into the "Amazon slop" mood and the gap left by Fakespot's shutdown.
    How to follow: Don't copy it on the Amazon US store. If you have your own distribution channel, move to Temu, Walmart, or TikTok Shop, or build local versions for Japan's Amazon or Germany's Amazon. Copy its launch style: name the competitor, show before and after screenshots. Collect revenue from the merchants being copied or from the substitutes they recommend.
    Already public / widely discussed · Distribution playTiming or platform eventResourcesOrdinary Systems · 100,000 users · rating 4.586666666666667(147)
  143. Because of Suno's licensing deal with Warner, downloads were restricted from Sep 3. It shipped 3 days later, stuffed its name with search terms, then leaned on good reviews seeded in the first two days and ratings prompted from inside the extension to look credible among low-rated rivals. But it only reached 352 users.
    How to follow: Don't build another Suno downloader. Watch for the next platform that suddenly limits downloads or exports. Launch within a week, and from day one offer bulk and full-library export, a free daily quota, and a lifetime one-time purchase. Claim the search terms and reviews before copycats arrive.
    Nobody knows it yet · Timing or platform eventDistribution playDidn't break out · 333 users · rating 4.428571428571429(14)
  144. It hasn't really taken off. Screen Studio's move to subscription created demand for one-time-purchase, cross-platform alternatives. The creator's own Reddit post got about 88 upvotes, and SEO comparison pages brought in a few hundred users.
    How to follow: I don't recommend building another auto-zoom screen recorder. If you do, build only the unique device-mockup half, and sell it to teams making store screenshots and ad creatives. Or copy its approach and get in first when the next desktop tool moves to a subscription, with a one-time-purchase alternative.
    Few people know about it yet · Didn't take offTiming or platform eventDistribution playscreenlet.org · 775 users · rating 5.0(6)
  145. Suno rolled out audio fingerprint detection in July of year 2026, so AI cover uploads to Soda Music and Douyin keep getting blocked, and creators are rushing to find a tool that still uploads. Fengling launched right in this wave, updating every week or two to keep up with Suno, and sells through Bilibili and YouTube tutorials plus Taobao license-key cards.
    How to follow: Skip the interception part and build the compliant parts next to it: Cantonese lyric and pronunciation rewriting, bulk download and organization, stem splitting, and export to short-video platform specs. Borrow its structure: a desktop app, a browser plugin that only takes over the login session, periodic license keys, and tutorial titles that match the error messages.
    Few people know about it yet · Timing or platform eventDistribution playProduct itselfgnmusic.cn · 314 users
  146. The team's predecessor, izFABO, has years of Facebook groups, fan pages and existing users, plus 6 extensions that cross-promote each other. The launch post offers giveaways and asks people to leave a 5-star rating and share it, so the rating count is several times that of its sister extensions, which makes it look hot in the data.
    How to follow: I don't recommend following this plugin directly. What you can borrow is the playbook: one brand releases several single-function plugins that feed traffic to each other, and charges for memberships off-store. At launch, give it away free in your own community and ask for shares and five-star reviews. This only works if you already have a base of existing users.
    Few people know about it yet · Distribution playResourcesDidn't take off · 1,000 users · rating 5.0(451)
  147. Booking opens at 10 AM on one fixed day each month and sells out within seconds, and each booking requires ID numbers for up to 6 people. Top paid extensions are expensive and poorly reviewed. This one has "Free" in its name and got its first users from a YouTube tutorial and related-extension placement on other store pages.
    How to follow: Don't build the #28 TTD plugin. Find an uncontested government or public form with a timed opening. Copy its approach (store data only locally, never submit, offer a practice page, and a 1-minute tutorial in the local language), and get in before there are more than three or four competitors.
    Still under the radar · Didn't break outDistribution playTiming or platform event · 1,000 users · rating 5.0(2)
  148. It isn't actually big yet: from a base of 35 users it grew to 608, a steady slope of a dozen or so people a day, most likely from store long-tail terms and a store page in 52 languages. Reddit, X, LinkedIn, and the official YouTube channel have barely any traffic.
    How to ride it Don't build a second generic YouTube study extension. Copy Pi Lens: pick one clear learner group (a specific exam in a specific country, a specific certification), build to their syllabus and language, get users in the groups and channels they already use, and borrow its tactics directly: no signup, free pre-check, paid export.
    Still under the radar · Didn't break outThe product itselfRobert Nowakowski · 523 users · rating 5.0(9)
  149. It isn't actually popular yet. Most users found it by searching "KDP niche" in the Chrome Store or by bumping into it in the related recommendations on big competitor pages. November grew a bit faster because it caught the holiday niche-research season.
    How to ride it Don't build another copycat extension. If you do, first get a KDP tutorial channel or community, give the extension away free as the hook for your content, or pick one thing the incumbents do badly (say, sales estimates for non-English stores or seasonal product picks) and go deep on it.
    Still under the radar · Hasn't broken out yetdistribution playMOHAMED MSADDAR · 485 users · rating 5.0(6)
  150. Vietnam requires full e-medical records by the end of 2026, and allows biometrics for patient confirmation. Hospital IT is installing the extension on hundreds of workstations one by one, and the user count is the number of computers.
    How to ride it Don't follow this extension. The idea worth borrowing: before a policy deadline, sell hospitals a universal "web page talks to local hardware" bridge that works across systems and device models, priced per workstation or bundled with the hardware. Only do it if you're already inside the local medical IT scene.
    Still under the radar · Timing or platform eventResource-drivenDidn't break out · 633 users · rating 5.0(1)
  151. It didn't really blow up: Bihar's residence proof application volume was huge, forms got longer, and the portal kept failing. At the end of July, cafe YouTubers started promoting similar plugins. It rode the search wave and, through store related recommendations, picked up a few hundred users, while the leader SK ZONE has 30k.
    How to ride it Don't build another Bihar clone. If you already do visa-application work in India, watch one state portal that just redesigned or is entering its application peak, ship within two weeks with photo-attachment auto-upload handled first, and get a local internet-cafe creator to film a tutorial.
    Nobody knows about it yet · Timing or platform eventDidn't break out · 557 users · rating 5.0(1)
  152. The original was pulled for hiding a data collector and has not returned. People searching "modheader" can only install a replacement. This one has the exact name users type, a store page stuffed with keywords, translated into 52 languages, clean permissions, and it made it into the related recommendations.
    How to ride it Don't keep chasing this one. Make "within a week of a big extension being pulled, ship a clean replacement with a name that matches the search terms, low permissions, and multiple languages" a standing move, and watch security media and store takedown notices.
    Nobody knows about it yet · Timing or platform eventDistribution playbook · 5,000 users · rating 5.0(3)
  153. It never really took off itself: what took off was the whole category. TTD tickets release once a month and sell out within minutes, the forms are long, and users compare against scalper prices and conclude ₹99 is worth it. It only got noticed after TTD blocked auto-fill in October and it switched to copy-paste; its users fell from 961 to 911.
    How to ride it Don't build another TTD extension. Move the "local document storage + auto-fill at release time + short-term pass + release-calendar content site" bundle to a different timed-booking scene with scalpers and no crowd of copycat extensions yet, and from day one leave the final click to the human.
    Still under the radar · Didn't break outTiming or platform eventDistribution playttddarshanautofill.com · 912 users · rating 3.6666666666666665(3)
  154. The account-selling site CZGPT, starting in July, dropped the "Anthropic email tracker" story and only sends the SK. The first step of the after-sale tutorial is installing this extension, so every account sold brings one install. At the end of October the same tutorial was copied to NodeSeek, sb.sb and SEO sites, and 11-06 spread to 4,000.
    How to ride it Don't copy a SK login extension. What's worth taking is "make the extension part of the delivery flow": in a legitimate business where the user still has to do one step after paying, build that step as your own extension and put it in the post-purchase instructions.
    Buzzing in small circles · Distribution playbook Timing or platform event · 4,000 users · rating 5.0(1)
  155. The author posted installation tutorials on Vietnamese student TikTok: one hit 520k views in April, then two more around the September school start. It's also one of the few in its category that made it onto the Chrome store, installs in one click, and is free, which catches the year-round demand from Vietnamese students who don't want a Studocu subscription.
    How to ride it Don't build another document downloader. Copy the playbook: a student developer films install tutorials on local student TikTok in their native language, on camera, timed to the start of the school term; test demand with a zip file plus a video first, and list it in the store once comments say "can't install."
    Whispered in niche circles · Distribution playTiming or platform eventBánh mì Cẩm Phả · 10,000 users · rating 4.986666666666666(112)
  156. The term took off after Google open-sourced DESIGN.md in April. The founder used his own account to post comment-for-link Reels, which brought in 2,000 installs. But the audience is young people broadly interested in AI, and almost none of them pay.
    How to ride it Don't build another free "site URL to DESIGN.md" tool. If you do, go downstream: extract the design spec from behind login, output Tailwind or component libraries straight to teams for a fee, and get customers where developers actually spend their time.
    Public / widely discussed · Distribution playTiming or platform eventDidn't break outsitepeel.dev · 2,000 users · rating 4.2(5)
  157. It didn't take off on its own. The older Etsy SEO site RankHero added an extension at the end of a redesign, matching what competitors already had. Users came from the website, the pricing page, and existing customers. Its own promo video got 42 views.
    How to ride it Don't copy the Etsy extension. If you already run a paid tools website, add an extension as a retention hook the same way: common data free, each use deducted from a quota tied to the plan, and show the data before asking for a signup.
    Public / widely discussed · Resource-drivenDidn't break outrankhero.com · 407 users · rating 5.0(3)

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