head to head · open source
ECC vs dev3000
ECC has 274,211 GitHub stars, 40,911 forks, 351 open issues and last shipped 2 days ago. dev3000 has 1,583 stars, 97 forks, 7 open issues and last shipped yesterday. ECC leads on adoption by 17,222% (274,211 vs 1,583 stars). ECC is written in JavaScript under MIT; dev3000 is written in TypeScript under MIT. ECC has attracted 15% as many forks as stars, dev3000 6%. dev3000 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
| ECC | dev3000 | |
|---|---|---|
| GitHub stars | ★ 274K | ★ 1.6K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-05 | 2026-10-06 |
| Forks | ⑂ 41K | ⑂ 97 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 274K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick dev3000 if
- You want the dev3000 feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and dev3000 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 dev3000
dev3000 (d3k) is an agent first local web debugging runtime for developers who want their coding agent to own the dev server, browser, and evidence stream while debugging a web application.
read the full dev3000 overview →
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Frequently asked questions
Is ECC or dev3000 more popular?
ECC has 274,211 GitHub stars and dev3000 has 1,583. ECC has the larger community by that measure.
Are ECC and dev3000 free?
Both are open source. ECC is licensed under MIT and dev3000 under MIT. Neither carries a licence fee.
What is the difference between ECC and dev3000?
ECC is written in JavaScript and dev3000 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 dev3000?
Choose ECC if you want the larger community (274,211 stars) or its MIT licence terms. Choose dev3000 if its feature set, stack or MIT licence fits better. Both are self-hostable.