head to head · open source
ECC vs WWDC
ECC has 276,066 GitHub stars, 41,189 forks, 225 open issues and last shipped today. WWDC has 8,742 stars, 767 forks, 23 open issues and last shipped 4 months ago. ECC leads on adoption by 3,058% (276,066 vs 8,742 stars). ECC is written in JavaScript under MIT; WWDC is written in Swift under BSD-2-Clause. ECC has attracted 15% as many forks as stars, WWDC 9%. 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 | WWDC | |
|---|---|---|
| GitHub stars | ★ 276K | ★ 8.7K |
| License | MIT | BSD-2-Clause |
| Written in | JavaScript | Swift |
| Last push | 2026-10-10 | 2026-06-17 |
| Forks | ⑂ 41K | ⑂ 767 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 276K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick WWDC if
- You want the WWDC feature set and don't need the biggest community
- You prefer the BSD-2-Clause license terms
- Your stack matches Swift
- You evaluated both and WWDC 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 WWDC
WWDC is an unofficial, open source macOS app for Apple developers who want to watch conference sessions, follow the live schedule, and take searchable notes without leaving their Mac.
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Frequently asked questions
Is ECC or WWDC more popular?
ECC has 276,066 GitHub stars and WWDC has 8,742. ECC has the larger community by that measure.
Are ECC and WWDC free?
Both are open source. ECC is licensed under MIT and WWDC under BSD-2-Clause. Neither carries a licence fee.
What is the difference between ECC and WWDC?
ECC is written in JavaScript and WWDC in Swift. 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 WWDC?
Choose ECC if you want the larger community (276,066 stars) or its MIT licence terms. Choose WWDC if its feature set, stack or BSD-2-Clause licence fits better. Both are self-hostable.