head to head · open source
rea vs opencodex
rea has 457,973 GitHub stars, 112,354 forks, 70 open issues and last shipped today. opencodex has 18,501 stars, 1,472 forks, 101 open issues and last shipped today. rea leads on adoption by 2,375% (457,973 vs 18,501 stars). rea is written in TypeScript under MIT; opencodex is written in TypeScript under MIT. rea has attracted 25% as many forks as stars, opencodex 8%. rea was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (claude-code), so they are genuine substitutes rather than adjacent tools.
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 | opencodex | |
|---|---|---|
| GitHub stars | ★ 458K | ★ 19K |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-14 | 2026-11-14 |
| Forks | ⑂ 112K | ⑂ 1.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick rea if
- You weight community size — 458K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick opencodex if
- You want the opencodex feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and opencodex 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 opencodex
make codex open! Universal provider proxy for OpenAI Codex, Claude Code, Claude Desktop & Grok Build Two commands, and every one of them runs any LLM you point it at. Claude Code, running any model The picker is stock Claude Code. The brain behind it isn't. Codex, running any model Pick a provider and go — same workflow, different brain. Claude Desktop, running any model Opus answers, then hands the task to a GPT 5.6 Sol subagent. Grok Build, running any model Sol drives the session and calls a Kimi K3 subagent. English · Français · 한국어 · 简体中文 · 繁體中文 · Русский · 日本語 · Türkçe · 📖 Full documentation → opencodex…
read the full opencodex overview →
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Frequently asked questions
Is rea or opencodex more popular?
rea has 457,973 GitHub stars and opencodex has 18,501. rea has the larger community by that measure.
Are rea and opencodex free?
Both are open source. rea is licensed under MIT and opencodex under MIT. Neither carries a licence fee.
What is the difference between rea and opencodex?
rea is written in TypeScript and opencodex 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 opencodex?
Choose rea if you want the larger community (457,973 stars) or its MIT licence terms. Choose opencodex if its feature set, stack or MIT licence fits better. Both are self-hostable.