head to head · open source
ECC vs ccs
ECC has 261,896 GitHub stars, 39,186 forks, 228 open issues and last shipped 2 days ago. ccs has 2,856 stars, 260 forks, 18 open issues and last shipped 8 days ago. ECC leads on adoption by 9,070% (261,896 vs 2,856 stars). ECC is written in JavaScript under MIT; ccs is written in TypeScript under MIT. ECC has attracted 15% as many forks as stars, ccs 9%. ECC was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (claude, 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
| ECC | ccs | |
|---|---|---|
| GitHub stars | ★ 262K | ★ 2.9K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-11 |
| Forks | ⑂ 39K | ⑂ 260 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 262K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick ccs if
- You want the ccs feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ccs fits your workflow better
About ECC
ECC is an MIT licensed open source agent harness performance optimization system that gives AI coding agents a coordinated engineering workflow — plan, test, implement, review, verify, remember, improve — for developers working in Claude Code, Codex, OpenCode, Cursor, and other harnesses.
About ccs
CCS is an MIT licensed TypeScript CLI that switches Claude Code and compatible CLI runtimes between multiple Claude accounts, OAuth providers such as Codex and xAI/Grok, and OpenAI compatible or local model endpoints through one stable ccs command surface, aimed at developers who hold several AI coding subscriptions or model providers at once.
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Frequently asked questions
Is ECC or ccs more popular?
ECC has 261,896 GitHub stars and ccs has 2,856. ECC has the larger community by that measure.
Are ECC and ccs free?
Both are open source. ECC is licensed under MIT and ccs under MIT. Neither carries a licence fee.
What is the difference between ECC and ccs?
ECC is written in JavaScript and ccs 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 ccs?
Choose ECC if you want the larger community (261,896 stars) or its MIT licence terms. Choose ccs if its feature set, stack or MIT licence fits better. Both are self-hostable.