head to head · open source
ECC vs profiler
ECC has 275,269 GitHub stars, 41,120 forks, 266 open issues and last shipped 4 days ago. profiler has 1,536 stars, 496 forks, 862 open issues and last shipped yesterday. ECC leads on adoption by 17,821% (275,269 vs 1,536 stars). ECC is written in JavaScript under MIT; profiler is written in TypeScript under MPL-2.0. ECC has attracted 15% as many forks as stars, profiler 32%. profiler 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 | profiler | |
|---|---|---|
| GitHub stars | ★ 275K | ★ 1.5K |
| License | MIT | MPL-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-05 | 2026-10-08 |
| Forks | ⑂ 41K | ⑂ 496 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 275K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick profiler if
- You want the profiler feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and profiler 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 profiler
Firefox Profiler is an open source web application for visualizing performance profiles recorded from Firefox and other profilers, built for developers and Mozilla engineers who need to diagnose slow pages, scripts, and browser behaviour.
read the full profiler overview →
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Frequently asked questions
Is ECC or profiler more popular?
ECC has 275,269 GitHub stars and profiler has 1,536. ECC has the larger community by that measure.
Are ECC and profiler free?
Both are open source. ECC is licensed under MIT and profiler under MPL-2.0. Neither carries a licence fee.
What is the difference between ECC and profiler?
ECC is written in JavaScript and profiler 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 profiler?
Choose ECC if you want the larger community (275,269 stars) or its MIT licence terms. Choose profiler if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.