head to head · open source
ECC vs npkill
ECC has 275,030 GitHub stars, 41,030 forks, 372 open issues and last shipped 3 days ago. npkill has 9,463 stars, 257 forks, 24 open issues and last shipped 1 months ago. ECC leads on adoption by 2,806% (275,030 vs 9,463 stars). ECC is written in JavaScript under MIT; npkill is written in TypeScript under MIT. ECC has attracted 15% as many forks as stars, npkill 3%. 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 | npkill | |
|---|---|---|
| GitHub stars | ★ 275K | ★ 9.5K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-05 | 2026-09-08 |
| Forks | ⑂ 41K | ⑂ 257 |
| 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 npkill if
- You want the npkill feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and npkill 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 npkill
npkill is a command line utility for JavaScript and TypeScript developers who want to find every node modules directory on their machine, see how much disk space each one occupies, and delete the ones they no longer need.
read the full npkill overview →
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Frequently asked questions
Is ECC or npkill more popular?
ECC has 275,030 GitHub stars and npkill has 9,463. ECC has the larger community by that measure.
Are ECC and npkill free?
Both are open source. ECC is licensed under MIT and npkill under MIT. Neither carries a licence fee.
What is the difference between ECC and npkill?
ECC is written in JavaScript and npkill 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 npkill?
Choose ECC if you want the larger community (275,030 stars) or its MIT licence terms. Choose npkill if its feature set, stack or MIT licence fits better. Both are self-hostable.