head to head · open source
Cap vs Featurevisor
Cap has 7,798 GitHub stars, 579 forks, 10 open issues and last shipped 2 days ago. Featurevisor has 808 stars, 38 forks, 7 open issues and last shipped 10 days ago. Cap leads on adoption by 865% (7,798 vs 808 stars). Cap is written in JavaScript under a custom or non-standard licence; Featurevisor is written in TypeScript under MIT. Cap has attracted 7% as many forks as stars, Featurevisor 5%. Cap was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (javascript), 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
| Cap | Featurevisor | |
|---|---|---|
| GitHub stars | ★ 7.8K | ★ 808 |
| License | Custom / other | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-16 | 2026-09-08 |
| Forks | ⑂ 579 | ⑂ 38 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Cap if
- You weight community size — 7.8K 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 Featurevisor if
- You want the Featurevisor feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Featurevisor fits your workflow better
About Cap
Cap is a free, open source, self hosted CAPTCHA replacement that swaps visual puzzles for proof of work and instrumentation challenges, built for developers and site operators who want anti bot protection without shipping their visitors' data to a third party service.
About Featurevisor
Featurevisor is an MIT licensed TypeScript project for feature management with GitOps. It lets developers manage feature flags, experiment variations, and remote configuration values declaratively inside a Git repository. The project lives in the GitOps feature management ecosystem, where Git is used to define product behavior and configuration.
read the full Featurevisor overview →
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Frequently asked questions
Is Cap or Featurevisor more popular?
Cap has 7,798 GitHub stars and Featurevisor has 808. Cap has the larger community by that measure.
Are Cap and Featurevisor free?
Both are open source. Cap has no licence declared in this registry, and Featurevisor is licensed under MIT. Both are free to self-host.
What is the difference between Cap and Featurevisor?
Cap is written in JavaScript and Featurevisor 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, Cap or Featurevisor?
Choose Cap if you want the larger community (7,798 stars) or its Custom / other licence terms. Choose Featurevisor if its feature set, stack or MIT licence fits better. Both are self-hostable.