head to head · open source
ECC vs opencodex
ECC has 302,526 GitHub stars, 44,623 forks, 275 open issues and last shipped 5 days ago. opencodex has 18,501 stars, 1,472 forks, 101 open issues and last shipped today. ECC leads on adoption by 1,535% (302,526 vs 18,501 stars). ECC is written in JavaScript under MIT; opencodex is written in TypeScript under MIT. ECC has attracted 15% as many forks as stars, opencodex 8%. opencodex was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 4 topic tags (anthropic, claude, claude-code, developer-tools), 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
| ECC | opencodex | |
|---|---|---|
| GitHub stars | ★ 303K | ★ 19K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-09 | 2026-11-14 |
| Forks | ⑂ 45K | ⑂ 1.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 303K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- 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 ECC
Language: English العربية Português (Brasil) 简体中文 繁體中文 日本語 한국어 Türkçe Русский Tiếng Việt ไทย Deutsch Español Українська Polski বাংলা [!WARNING] Official sources only. Install ECC only from verified channels: the GitHub repository github.com/affaan m/ECC, the npm packages ecc universal and ecc agentshield , the GitHub App, the plugin slug ecc@ecc , and the project website ecc.tools. Third party re uploads and unofficial mirrors are not maintained or reviewed by the project and may contain malware. Install with Claude Code Use the guided setup or native plugin commands. Both install the same ecc@ecc plugin. Choose…
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 ECC or opencodex more popular?
ECC has 302,526 GitHub stars and opencodex has 18,501. ECC has the larger community by that measure.
Are ECC and opencodex free?
Both are open source. ECC is licensed under MIT and opencodex under MIT. Neither carries a licence fee.
What is the difference between ECC and opencodex?
ECC is written in JavaScript 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, ECC or opencodex?
Choose ECC if you want the larger community (302,526 stars) or its MIT licence terms. Choose opencodex if its feature set, stack or MIT licence fits better. Both are self-hostable.