head to head · open source
rea vs Jitsu
rea has 422,352 GitHub stars, 105,329 forks, 70 open issues and last shipped yesterday. Jitsu has 5,125 stars, 405 forks, 43 open issues and last shipped yesterday. rea leads on adoption by 8,141% (422,352 vs 5,125 stars). rea is written in TypeScript under MIT; Jitsu is written in TypeScript under MIT. rea has attracted 25% as many forks as stars, Jitsu 8%. rea was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| rea | Jitsu | |
|---|---|---|
| GitHub stars | ★ 422K | ★ 5.1K |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 105K | ⑂ 405 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick rea if
- You weight community size — 422K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Jitsu if
- You want the Jitsu feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Jitsu fits your workflow better
About rea
English · 简体中文 · 繁體中文 · 日本語 · 한국어 · Türkçe · Русский · Tiếng Việt · ไทย · Deutsch · Español · Français · Українська · Polski · Português (Brasil) · العربية · فارسی REA: Reverse Engineer Anything One MCP for reverse engineering across binaries, applications, and runtime behavior. See a feature you like. Understand how it works, down to the binary level. Website · Guides · Showcases Quick start · How REA works · What you can analyze · Showcases · FAQ · Documentation npx rea agents setup Join the Reverse Engineering Community Discord · Q&A · Show and Tell See a feature in an app that you want in your own product?…
About Jitsu
Open source event data platform. An alternative to Segment. Website · Docs · MCP Server · Jitsu Cloud · Self hosting · Slack · MIT License What is Jitsu? Jitsu collects event data from your websites, apps and servers, and delivers it to your data warehouse and to whatever other tools you use. It covers the same ground as Segment, but it's MIT licensed and self hostable, so the whole pipeline can run inside your own infrastructure — or on Jitsu Cloud, same software, hosted. Data lands in minutes, not hours: Segment loads warehouses once or twice a day (hourly at best), while Jitsu delivers per destination in…
read the full Jitsu overview →
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Frequently asked questions
Is rea or Jitsu more popular?
rea has 422,352 GitHub stars and Jitsu has 5,125. rea has the larger community by that measure.
Are rea and Jitsu free?
Both are open source. rea is licensed under MIT and Jitsu under MIT. Neither carries a licence fee.
What is the difference between rea and Jitsu?
rea is written in TypeScript and Jitsu in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, rea or Jitsu?
Choose rea if you want the larger community (422,352 stars) or its MIT licence terms. Choose Jitsu if its feature set, stack or MIT licence fits better. Both are self-hostable.