head to head · open source
Flagsmith vs Featurevisor
Flagsmith has 6,559 GitHub stars, 568 forks, 711 open issues and last shipped yesterday. Featurevisor has 808 stars, 38 forks, 7 open issues and last shipped 10 days ago. Flagsmith leads on adoption by 712% (6,559 vs 808 stars). Flagsmith is written in Python under BSD-3-Clause; Featurevisor is written in TypeScript under MIT. Flagsmith has attracted 9% as many forks as stars, Featurevisor 5%. Flagsmith was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (feature-flags, feature-management, 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
| Flagsmith | Featurevisor | |
|---|---|---|
| GitHub stars | ★ 6.6K | ★ 808 |
| License | BSD-3-Clause | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-08 |
| Forks | ⑂ 568 | ⑂ 38 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Flagsmith if
- You weight community size — 6.6K stars and counting
- You want the BSD-3-Clause license terms
- Your stack matches Python
- 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 Flagsmith
Flagsmith is an open source feature flag and remote configuration platform, written in Python and released under the BSD 3 Clause licence, for engineering teams that need to toggle, segment and roll out features across web, mobile and server side applications without deploying new code.
read the full Flagsmith 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 Flagsmith or Featurevisor more popular?
Flagsmith has 6,559 GitHub stars and Featurevisor has 808. Flagsmith has the larger community by that measure.
Are Flagsmith and Featurevisor free?
Both are open source. Flagsmith is licensed under BSD-3-Clause and Featurevisor under MIT. Neither carries a licence fee.
What is the difference between Flagsmith and Featurevisor?
Flagsmith is written in Python 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, Flagsmith or Featurevisor?
Choose Flagsmith if you want the larger community (6,559 stars) or its BSD-3-Clause licence terms. Choose Featurevisor if its feature set, stack or MIT licence fits better. Both are self-hostable.