head to head · open source
ECC vs illa-builder
ECC has 273,125 GitHub stars, 40,766 forks, 345 open issues and last shipped today. illa-builder has 12,331 stars, 1,210 forks, 43 open issues and last shipped 4 months ago. ECC leads on adoption by 2,115% (273,125 vs 12,331 stars). ECC is written in JavaScript under MIT; illa-builder is written in TypeScript under Apache-2.0. ECC has attracted 15% as many forks as stars, illa-builder 10%. ECC was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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 | illa-builder | |
|---|---|---|
| GitHub stars | ★ 273K | ★ 12K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-05 | 2026-05-27 |
| Forks | ⑂ 41K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 273K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick illa-builder if
- You want the illa-builder feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and illa-builder 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 illa-builder
ILLA Builder is an open source low code platform for developers and internal tool teams who want to build dashboards, CRUD apps, admin panels, CRMs and CMSs without hand coding the front end.
read the full illa-builder overview →
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Frequently asked questions
Is ECC or illa-builder more popular?
ECC has 273,125 GitHub stars and illa-builder has 12,331. ECC has the larger community by that measure.
Are ECC and illa-builder free?
Both are open source. ECC is licensed under MIT and illa-builder under Apache-2.0. Neither carries a licence fee.
What is the difference between ECC and illa-builder?
ECC is written in JavaScript and illa-builder 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 illa-builder?
Choose ECC if you want the larger community (273,125 stars) or its MIT licence terms. Choose illa-builder if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.