head to head · open source
Cap vs FeatBit
Cap has 8,236 GitHub stars, 637 forks, 10 open issues and last shipped 5 days ago. FeatBit has 1,954 stars, 150 forks, 26 open issues and last shipped yesterday. Cap leads on adoption by 321% (8,236 vs 1,954 stars). Cap is written in JavaScript under a custom or non-standard licence; FeatBit is written in C# under MIT. Cap has attracted 8% as many forks as stars, FeatBit 8%. FeatBit 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
| Cap | FeatBit | |
|---|---|---|
| GitHub stars | ★ 8.2K | ★ 2.0K |
| License | Custom / other | MIT |
| Written in | JavaScript | C# |
| Last push | 2026-10-29 | 2026-11-02 |
| Forks | ⑂ 637 | ⑂ 150 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Cap if
- You weight community size — 8.2K stars and counting
- You want the Custom / other license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick FeatBit if
- You want the FeatBit feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and FeatBit fits your workflow better
About Cap
Cap Cap is a lightweight, modern open source CAPTCHA alternative using proof of work and instrumentation challenges . It's fast, private, and extremely simple to integrate. Documentation Read the docs , try the demo or deploy on Railway What is Cap? Cap replaces visual captchas with modern, accessible and privacy preserving challenges. No images, no tracking, no dependencies, works everywhere. The default way to use Cap is with the Standalone Docker container. Learn more about how Cap works Why Cap? 250x smaller than hCaptcha 20kb, zero dependencies, loads in milliseconds Privacy first Cap doesn't send any…
About FeatBit
Documentation Community (Discord) LinkedIn Email Try FeatBit Online Try FeatBit immediately with our online demo. The video below shows you how to get started quickly. About FeatBit FeatBit is an open source feature flags management tool that empowers developers: Ship Code Safely . Mitigate risks with Production Testing, roll out features to 1% of users initially then expanding progressively, and ensure instant error recovery without redeployment. Targeted Experiences . Giving you control over who sees each feature and when they see it. Release features to specific target users, and continuously measure and…
read the full FeatBit overview →
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Frequently asked questions
Is Cap or FeatBit more popular?
Cap has 8,236 GitHub stars and FeatBit has 1,954. Cap has the larger community by that measure.
Are Cap and FeatBit free?
Both are open source. Cap has no licence declared in this registry, and FeatBit is licensed under MIT. Both are free to self-host.
What is the difference between Cap and FeatBit?
Cap is written in JavaScript and FeatBit in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Cap or FeatBit?
Choose Cap if you want the larger community (8,236 stars) or its Custom / other licence terms. Choose FeatBit if its feature set, stack or MIT licence fits better. Both are self-hostable.