head to head · open source
Unleash vs Featurevisor
Unleash has 13,811 GitHub stars, 896 forks, 39 open issues and last shipped yesterday. Featurevisor has 808 stars, 38 forks, 7 open issues and last shipped 10 days ago. Unleash leads on adoption by 1,609% (13,811 vs 808 stars). Unleash is written in TypeScript under AGPL-3.0; Featurevisor is written in TypeScript under MIT. Unleash has attracted 6% as many forks as stars, Featurevisor 5%. Unleash was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 4 topic tags (experiments, feature, feature-flags, feature-toggles), 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
| Unleash | Featurevisor | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 808 |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-08 |
| Forks | ⑂ 896 | ⑂ 38 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Unleash if
- You weight community size — 14K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- 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 Unleash
Unleash is an open source feature management platform written in TypeScript and released under the AGPL 3.0 license. It lives in the DevOps, continuous delivery, and application security ecosystem, and its topics describe feature flags, feature toggles, activation strategies, experiments, and collaboration.
read the full Unleash overview →
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 Unleash or Featurevisor more popular?
Unleash has 13,811 GitHub stars and Featurevisor has 808. Unleash has the larger community by that measure.
Are Unleash and Featurevisor free?
Both are open source. Unleash is licensed under AGPL-3.0 and Featurevisor under MIT. Neither carries a licence fee.
What is the difference between Unleash and Featurevisor?
Unleash is written in TypeScript 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, Unleash or Featurevisor?
Choose Unleash if you want the larger community (13,811 stars) or its AGPL-3.0 licence terms. Choose Featurevisor if its feature set, stack or MIT licence fits better. Both are self-hostable.