# Ajudante + Eproc: a Brazilian court switched systems, a staffer wrote a plugin, and colleagues installed it a thousand times · Chrome extension

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> 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.

[Chrome extension](https://stringers.io/en/ext/index.md) · written 11-6

Ajudante +Eproc ·

# Ajudante + Eproc: a Brazilian court switched systems, a staffer wrote a plugin, and colleagues installed it a thousand times

**What it is** A free Chrome extension that adds a few handy features to eproc, the electronic case system used by Brazilian court staff: color tags, event folding, case-number completion and searchable dropdowns.

**Why it took off** Minas Gerais courts were forced to migrate from the old system to eproc, and tens of thousands of staff had to adapt to a new interface. The author works inside a courthouse, so he first built it for his own department, and it spread among colleagues.

**C** **How you could approach it** Don't build another eproc plugin. Learn the method of finding demand: watch for public announcements of forced system migrations at large institutions, and during the migration window build lightweight free add-on tools. If you want to make money, build for the paying side, like lawyers.

Grade C: the forced-migration demand trigger is worth learning from. But eproc plugins are already crowded, the users are court staff who don't pay, distribution relies on colleague relationships outsiders can't access, and it stalled at 1,000 users with no updates after August. Few people know about it yet

1,000 users · rating 5.0 (12)

Ajudante + Eproc is a free Chrome extension that adds handy features to eproc, the electronic litigation system used by Brazilian courts. The author, Júlio Henrique, registered it under the address of the courthouse in Uberlândia, Minas Gerais. It was listed on the Chrome Store in May 2026, just as the whole state's courts were forced to move from the old system to eproc. It reached 1,000 users in half a year without charging anything. Most users are his colleagues and their colleagues.

### 11 days before the system switch

On May 14, 2026, Ajudante + Eproc was listed on the Chrome Store. 11 days later, on May 25, the Minas Gerais Court of Justice (TJMG) announced that the eproc civil system had been rolled out statewide, and that by June all civil units could move their cases from the old PJe system into it. In other words, court staff across the state had to replace the back-end interface they'd used for years within a few weeks.

Reviews came the next day. On May 15, Bernardo Vieira wrote "Extensão muito útil para uso no EPROC" (very useful extension for using EPROC). On May 25 and 26, more followed: Samara Oliveira Arcanjo wrote "Desenvolvedor mó gente boa" (the developer is a really good guy), Elci José de Oliveira Júnior wrote "Inovação no Judiciário… Parabéns Júlio" (innovation in the judiciary… congrats Júlio), and Mário César dos Santos Fonseca wrote "Excelente, parabéns Chúlio!", using a nickname for Júlio. In October 19, a review from an account named "ula2familia" said: "Ajudou muito nas rotinas da unidade!" (helped a lot with the unit's routines). The email addresses for TJMG Uberlândia units all start with ula., so this account looks like a shared account for a local second family court (inferred).

The store shows 9 text reviews, 7 of which were left between May 15 and 26. Those days were when the migration was wrapping up and everyone was most scrambled.

### What it is

eproc is an electronic litigation system developed by the Federal Regional Court of the 4th Region and provided free to state courts. This plugin isn't for lawyers. It's for court staff who handle cases in the eproc back end every day. It has 6 features in total, each of which can be toggled separately in settings:

- Colors the localizador (the internal work-queue tag showing where a case sits in the court), so you can see at a glance which step each case is on;

- Filter the event list and fold the 'send summons, confirm summons, send e-gazette' chain into one group;

- Look up a case without typing the full case number;

- When scheduling drafted documents, add a search box to the localizador dropdown so you don't have to scroll forever;

- Add reminder notes in preferences;

- Redo the 'additional information' field.

|  | Metric | Sources |
|---|---|---|
| users | 1,000 | Chrome Web Store, 11-06 |
| Rating | 5.0 stars, 12 ratings | Chrome Web Store, 11-06 |
| Launched | 2026-05-14 | Chrome Web Store |
| Recent updates | v2.4.0, last update late August, nothing for over two months since | Chrome Web Store |
| Size | 166 KiB | Chrome Web Store |
| Paid | None. No website, no in-app purchases, and the listing says it collects no data | Chrome Web Store |

Third-party stats sites show user counts of 775, 940, 994 climbing steadily (couldn't verify), and the store now shows 1,000.

### Why this one took off

**The demand came from a forced system switch.** TJMG chose eproc as the single court system for the whole state. Civil cases started migrating in batches from Sep 2025 29, wrapping up at the end of May 2026. Tens of thousands of staff had to learn a new interface, and the most annoying spots in the new system, too many localizadores to find, flooding summons events, case numbers that must be typed in full, hit people dozens of times a day. The extension launched right before the final migration wave.

**The author is in the building.** The developer address is Av. Rondon Pacheco, postal code 38405142, identical to the address and postal code of the Uberlândia courthouse on TJMG's website. Reviews call him Júlio or Chúlio and praise the 'good developer' who helped 'our department'. He is likely a court employee who built it for his own department and spread it through colleagues, between departments, and through internal court WhatsApp groups (inference). 12 five-star ratings make up 1.2% of users, higher than a typical extension. This doesn't look like review farming, more like friends cheering each other on.

**Easy to install without worry.** Free, no data collection, features can be toggled individually, and the extension is only 166 KiB. On a work computer, these points matter more than how many features there are.

### Where users come from

Apart from word of mouth among colleagues, there's no other channel. Searching its name only finds the store page and a few extension mirror sites. No website, almost 90 days with no mention on X, no Instagram account, no blogger promotion, no ads, no media coverage. It may appear in the 'related' bar of other eproc extensions in the store, but that can't be confirmed.

### Who it's competing with

The same migration triggered a whole batch of eproc extensions, almost all free tools written by court staff themselves:

| Competitors | Scale | How it differs |
|---|---|---|
| eploc | The official site claims over 1,000 installs, 11-06 still being updated | Also focused on TJMG, with an order of magnitude more features. Has a website, user manual, WhatsApp group, Instagram, and a software copyright registration. The most direct competitor, and its operations look more professional |
| AZflow | Mirror site shows 6,000+ users, rating 5.0 / 24 | From inside the Santa Catarina state court, supports both eproc and SEEU, releases almost daily |
| Epryx | 7,000 users, rating 4.95 / 22 | Launched 2025-03, with AI drafting and case file summaries |
| Eproc Plus | 758 users, rating 5.0 / 12 | Only 6 weeks earlier, with nearly identical scale and review counts |
| Tramitação Inteligente | 4,000 users | Launched 2026-07, a traffic-driving extension for a lawyer-facing SaaS with a business model |
| PJe✚R | 80,000 users | The same play on the PJe system, showing that 'adding a skin to court systems' can reach tens of thousands of people |
| Official eproc | All courts in use | The system vendor keeps iterating, TJMG also takes improvement suggestions, and useful small features will eventually get absorbed |

Its features heavily overlap with eploc, AZflow, and Eproc Plus, and it ranks behind them in scale. It hasn't updated since August, while its rivals still ship several versions a week.

### Where the money comes from

No money. Court staff work on government computers and won't pay for extensions out of pocket. The similar tools that do make money switched customers: Tramitação Inteligente and MinutaIA Conecta (100k users) target lawyers. The other route is selling directly to courts through public procurement.

### If it were you

**C: learn from the approach, but don't enter this patch.** The eproc extension space is already crowded. The users are unpaid civil servants, and spread relies on 'our department's Júlio', a kind of personal connection outsiders can't replicate. It has itself stalled at 1,000 users and hasn't updated in over two months.

**Who it's for** : developers inside a large institution whose workplace is switching systems; or people who want to build tools for paying groups like lawyers or accountants, using 'forced system migration' as a demand signal.

**Who it's not for** : indie devs who don't read Portuguese, don't know anyone inside Brazilian courts, or want to make money directly from an extension.

**How to do it:**

- Watch forced migration announcements from large institutions. When an institution announces a system switch and tens of thousands of staff must adapt to a new interface, there's a natural wave of demand for extensions that 'add a skin to the new system'. The next window is the São Paulo state court (the largest in the country) moving from SAJ to eproc, plus the TJMG criminal case wave in 2027.

- Start by using it within a department close to you. Keep it light, free, and away from data, and let colleagues spread it for you.

- To charge money, serve the people on the other side of the system who pay. In Brazil that's lawyers and law firms: case reminders, bulk exports, AI drafting, with the extension as the entry point.

**How to acquire users** : the first batch comes from migration training groups, internal WhatsApp groups, and word passed between departments. To reach the lawyer side, go to local bar association chapters and to legal-tech Instagram creators that lawyers follow.

**When to move** : the window runs from the start of the migration to two or three months after it ends. Once the authorities fix the worst pain points and top extensions fill in their features, there's no room left for newcomers.

**Signs you've read it wrong** : (1) it resumes updates and its user count overtakes eploc, showing that 'light, doing just a few things' can hold up on its own; (2) after the São Paulo court finishes migrating, an eproc extension starts earning money from staff, showing these users will pay, worth a second look.

[Chrome store page ↗](https://chromewebstore.google.com/detail/ajudante-+eproc/cnnfffncnjgbpojhniggdcpbiipgknlf)

**Research notes: competitor table, acquisition evidence, full research report**

Competitors

| Name | Where | Launched | Scale | How it differs from this one |
|---|---|---|---|---|
| eploc | Chrome | 2026 (exact date not verified) | The official site claims over 1,000 installs, 2026-11-06 still being updated | Also focused on TJMG, with an order of magnitude more features. Has a website, manual, WhatsApp group, Instagram, and an INPI registration |
| AZflow | Chrome | Predecessor AZ-Proc was used internally at TJSC from 2023 | 6,000+ users, 5.0 (24 ratings) (mirror site) | From TJSC, eproc+SEEU, has a website, releases almost daily |
| Epryx | Chrome | 2025-03-08 | 7,000 users (chromestore library) | With AI drafting / summaries and automation |
| Eproc Plus | Chrome | 2026-04-05 | 758 users, 5.0 (12 ratings) | Navigation / productivity tools of nearly the same period and scale, with a website |
| Tramitação Inteligente | Chrome | 2026-07-07 | 4,000 users | A traffic-driving extension for a lawyer-facing SaaS, with a business model |
| PJe✚R | Chrome | 2021-11 | 80,000 users | Top of the same model on the PJe system |
| Official eproc iterations | Big-company features | — | Maintained by TRF4, used by several state courts | The official side will gradually absorb improvements like these |

Where users come from

- **Verified** **Court colleague word of mouth / friendly endorsement reviews** : 9/10 reviews from 2026-05-15~26; 'parabéns Chúlio', 'Desenvolvedor mó gente boa', 'Ajudou muito nas rotinas da unidade'

- **Verified** **Platform event: TJMG moved from PJe to eproc** : TJMG civil migration started 2025-09-29, wrapped up at the end of 2026-05; extension launched 2026-05-14

- Inferred **Store related items / search** : appears in the 'related' bar of eproc extensions such as eploc and AZflow

- Inferred **Social / media / ads** : 0 posts on x-radar; no Instagram, media, or ads found

## Why Ajudante +Eproc (a Chrome extension) took off

> In one sentence: a free Chrome extension written by a Brazilian indie developer (Júlio Henrique, based in Uberlândia, Minas Gerais) that adds small features for court staff using the eproc system: color tags, event grouping, case number autocomplete, and dropdowns with search. It launched 2026-05-14, right as the Minas Gerais court (TJMG) moved civil cases from PJe to eproc, and reached about 1,000 users in half a year. It rode 'word of mouth among colleagues plus the timing of a platform migration'. There's no monetization model, and its reach is narrow.

### 1. Basic data

| items | Value | Source |
|---|---|---|
| Users | 1,000 | Chrome store page (read 2026-11-06); our chromestore library item_snap 2026-11-06/07 records 1,000 (earlier 11-01~11-04 only had card snapshots, user count was recorded as 0, not actually 0) |
| Growth curve | 775 → 940 → 994 → 1,000 | Chrome-Stats data cited in the recall card (not verified by me; the chrome-stats page requires a human verification step) |
| Rating | 5.0 (12 reviews) | Store page |
| Launch / last update | Released 2026-05-14; updated to v2.4.0,2026-08-21, with no updates for about 2.5 months since | Store page, chromestore library |
| Developer | Júlio Henrique, Av. Rondon Pacheco, Uberlândia MG; email ajudanteeproc@gmail.com; non-trader | Store page |
| Paid | No in-app purchases, no website, no pricing | Store page; chromestore library paid_signals is empty |

Features (summarized from the store description): reminders in preferences; color-coding "localizadores" (a case's internal work-queue label in the court); event filtering that folds the "issue summons / confirm summons / send to DJEN" event chain into one group; case-number autocomplete (look up a case without typing the full number); search in the localizador picker for "agendar minuta" (schedule drafting a document); a redesigned "additional information" field. These are **features court staff (servidores) need inside eproc's back end** , not features lawyers use.

### II. Competitors: who else is doing the same thing

eproc is an electronic court-case system built by Federal Regional Court No. 4 (TRF4) and given free to state courts; 2024–2026 saw big courts like TJMG and TJSP migrate to it (see section 3). The space for add-on tools on top of eproc is already crowded, and **almost all of them are free tools built by court staff themselves** :

| Product | Platform | Launched | Scale | How it differs from Ajudante +Eproc |
|---|---|---|---|---|
| eploc | Chrome / Edge | Unverified (2026; INPI software registration no. BR 51 2026 008457 1) | Website says "over 1,000 people have installed it"; v1.12.0,2026-11-06, still being updated | Also focused on TJMG, but with an order of magnitude more features (floating panel, event links, email templates, RUPE/SEI, fixes for leftover PJe migration issues, Google Drive backup). Has a website, a manual, a WhatsApp group and an Instagram account, @eploc.extensao. It's the most direct rival, and it's run more professionally. |
| AZflow | Chrome | Originated as AZ-Proc inside TJSC (TJSC news, 2023) | Third-party mirror sites show 6,000+ users and 5.0 (24 reviews); v1.96.2,2026-11-05, updated | Comes from the Santa Catarina State Court (TJSC), covers eproc + SEEU, has a website at azflow.app.br, and iterates very frequently |
| Epryx | Chrome | 2025-03-08 | 7,000 users, 4.95 (22 reviews) (chromestore library) | Has AI (drafting, summarizing case files) and automation; covers eproc + SEEU |
| Eproc Plus | Chrome | 2026-04-05 | 758 users, 5.0 (12 reviews) (chromestore library); developer Renato Valer, website eprocplus.com.br | Launched only 6 weeks earlier; nearly identical in scale and review count; same kind of navigation/productivity tool |
| Tramitação Inteligente | Chrome | 2026-07-07 | 4,000 users (chromestore library) | A SaaS lead-gen plugin for lawyers and social-security attorneys that imports PJe/eproc cases into its own system |
| Eproc Window Set / eProc + Calendar / Divisor de Vídeos eproc / Pesquisa de Auto Textos eproc / Eproc Tunado | Chrome | 2023–2026 | Dozens to 170 users | A single small feature |
| PJe✚R | Chrome | 2021-11 | 80,000 users (chromestore library) | The same model on the PJe system is the leader in its category, showing that "skinning" court systems can reach tens of thousands of users |
| MinutaIA Conecta | Chrome | 2024-08 | 100,000 users (chromestore library) | A commercial AI writing product for lawyers, across multiple systems |
| Official eproc | The system itself | — | — | TRF4 keeps iterating, and TJMG is also proposing improvements to eproc (TJMG news: "TJMG apresenta propostas de aperfeiçoamento do eproc") |

Conclusion: there is no gap. In the eproc enhancement extension market it ranks fourth or fifth, with fewer features than eploc and AZflow, and a smaller scale than AZflow and Epryx.

### 3. Why it took off

1. **Timing: TJMG's move to eproc is wrapping up.** TJMG has made eproc its only court case system. Civil cases start migrating across the state's courts in batches from 2025-09-29 (TJMG notices, OAB Arcos 2025-07-10 coverage, TJMG's timeline posts on Instagram). TJMG's 2026-04-24 news says the civil phase should finish around late May. Ajudante + Eproc 2026-05-14 launches right when court staff in the interior of Minas Gerais are forced to switch systems and the pain is worst. The eploc site also leans on the "mess left by the TJMG migration", which shows the demand was created by this very move. The São Paulo state court, TJSP, has also been moving from SAJ to eproc in batches since 2025 (TJSP's official timeline), so this pool keeps growing.

2. **Where users came from: word of mouth among colleagues.** Of the 10 written store reviews, 9 are concentrated in 2026-05-15 to 05-26 (within two weeks of launch), with a clearly familiar tone: "Excelente, parabéns Chúlio!" (nicknaming Júlio), "Desenvolvedor mó gente boa" (the developer is a really good person), "Inovação no Judiciário... Parabéns Júlio," "Ajudou muito nas rotinas da unidade" (helped a lot with our unit's routines). The address the developer registered, Av. Rondon Pacheco in Uberlândia, is probably the street where the local courthouse (Fórum) is (unverified). It's reasonable to infer that he is a court employee who first promoted it within his own unit and among coworkers, then spread it through internal court WhatsApp groups and between departments. A recall card says "the rating accounts for 1.2% of users, which looks like actively soliciting good reviews," but a more accurate description is **colleagues supporting a friend** , not paid review manipulation.

3. **Why it stuck: used every day, free, and toggleable as needed.** The features target pain points like localizadores and the summons chain, which people check dozens of times a day. It's completely free, and data never leaves the browser (store privacy statement: no data collected). Modular on/off switches also lower the psychological barrier to installing an extension on a work computer.

4. **No external channels found.** Jina/Exa searches for "Ajudante +Eproc" turned up only the store page and a few extension mirror sites (crxsoso, myext.info, extscope, extension.vn). X (x-radar, searching "eproc extensão" over the last ~90 days) returned 0 results. There's no account of its own or creator recommendation on Instagram (the Bernardo de Azevedo post that came up is about MinutaIA Conecta, not this product). No website, ads, or media coverage.

### 4. Differentiation

Weak. Its features overlap heavily with eploc, AZflow and Eproc Plus (color-coding/searching localizadores, organizing events, autocompleting case numbers), and eploc does it more completely and runs it better on the TJMG turf. Its only distinctive trait is being **light** : 166 KiB (eploc 1.15 MiB, AZflow 5.36 MiB), only 6 features, and the developer is "Júlio from our unit." It got going on migration timing, a network of acquaintances, and being free, not on differentiation. Since August it has stopped updating, while eploc and AZflow ship releases almost daily, so it will likely be overtaken by them.

### 5. How many people have seen it

- Revenue: none, and there is no paywall or payment option.

- Exposure: no media, major X accounts or influencers have written about it; it has only spread in small circles of court staff.

- Copycats: this category has seen a wave of new entrants in 2026 years (Eproc Plus 04-05, eProc + Calendar 04-12, Tramitação Inteligente 07-07, SEEU Ultra Flow 08-11, Divisor de Vídeos eproc 08-25, Pesquisa de Auto Textos eproc 09-24; launch dates from the chromestore library), plus eploc. They aren't copying it; the same migration spawned a group of similar tools.

### VI. What others can learn from it

- **A forced platform migration is a demand window** : when a large institution changes systems (TJMG and TJSP moving to eproc), tens of thousands of employees are forced to adapt to a new interface, which creates natural demand for extensions that "reskin" the new system. The next window is the TJSP migration (the nation's largest court) and TJMG's criminal-case round in 2027.

- **Insiders building internal tools** : use it in your own unit first, let colleagues review it and spread the word, and you can reach thousands of daily users with zero acquisition cost.

- **To make money, you need to change customers** : court staff won't pay. To charge, you'd need to build for lawyers, as Tramitação Inteligente and MinutaIA do, or sell to the courts (B2G).

### VII. Uncertain

- The 775→940→994 curve comes from Chrome-Stats, cited by the recall card; I couldn't open it to verify. Our own library has only this one reading, 1,000.

- Whether the developer really works at TJMG and whether the address is the courthouse: inferred from the review tone and address, unverified.

- eploc's launch date and AZflow's current accurate user count (6,000+ comes from mirror sites) are unverified.

- Whether it was recommended in WhatsApp groups or on the court intranet: public web search can't show this, so it can't be determined.

### Sources

- Chrome store page: [chromewebstore.google.com/detail/ajudante-+eproc/cnnfffncnjg…](https://chromewebstore.google.com/detail/ajudante-+eproc/cnnfffncnjgbpojhniggdcpbiipgknlf); the reviews page (pt-BR) uses the same path, /reviews?hl=pt-BR (2026-11-06 read)

- chromestore library (agent-im server): item, item_snap, related; 2026-11-07 queries

- TJMG:[www.tjmg.jus.br/portal-tjmg/noticias/norma-estabelece-cronog…](https://www.tjmg.jus.br/portal-tjmg/noticias/norma-estabelece-cronograma-para-expansao-do-eproc.htm) (2026-04-24);[www.tjmg.jus.br/portal-tjmg/informes/eproc-migracao-de-proce…](https://www.tjmg.jus.br/portal-tjmg/informes/eproc-migracao-de-processos-8ACC82BBA0EF6BAF01A10C3B5C6D13DC-00.htm) ;[oabarcos.org.br/noticia/tjmg-publica-cronograma-de-implantac…](https://oabarcos.org.br/noticia/tjmg-publica-cronograma-de-implantacao-do-eproc-em-todas-as-comarcas-civeis-de-mg)

- TJSP:[www.tjsp.jus.br/eproc/CronogramaImplantacao](https://www.tjsp.jus.br/eproc/CronogramaImplantacao) ;[aojesp.org.br/tjsp-anuncia-migracao-de-processos-do-saj-para…](https://aojesp.org.br/tjsp-anuncia-migracao-de-processos-do-saj-para-o-eproc/)

- eploc:[eploc.com.br/](https://eploc.com.br/) ;[chromewebstore.google.com/detail/eploc/fkpkkenjcfpplmhlfdbab…](https://chromewebstore.google.com/detail/eploc/fkpkkenjcfpplmhlfdbabhcdhmhiojhj)

- AZflow: [chromewebstore.google.com/detail/azflow/jiomkeibpbnjkfnoklnk…](https://chromewebstore.google.com/detail/azflow/jiomkeibpbnjkfnoklnkipbkkacmaaid); [www.azflow.app.br/](https://www.azflow.app.br/); [www.tjsc.jus.br/web/imprensa/-/aplicativo-que-agiliza-cotidi…](https://www.tjsc.jus.br/web/imprensa/-/aplicativo-que-agiliza-cotidiano-do-pjsc-passa-a-ser-utilizado-no-seeu-em-fase-piloto); mirror site popoffapp.com (6,000+ users)

- Epryx, Eproc Plus: store pages and the chromestore library; [chrome-stats.com/d/decmpmpjahgchalahfacmejdgjhkbabm](https://chrome-stats.com/d/decmpmpjahgchalahfacmejdgjhkbabm)

- x-radar search for "eproc extensão" (last ~90 days): 0 results

This article was written by AI from public data and the data we collect daily. Numbers are sourced, and inferences are labeled.