head to head · open source
Flagsmith vs Featurevisor
Flagsmith has 6,638 GitHub stars, 595 forks, 711 open issues and last shipped yesterday. Featurevisor has 814 stars, 39 forks, 7 open issues and last shipped 2 days ago. Flagsmith leads on adoption by 715% (6,638 vs 814 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 | ★ 814 |
| License | BSD-3-Clause | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 595 | ⑂ 39 |
| 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
Try our interactive demo Flagsmith is an Open Source Feature Flagging Tool to Ship Faster & Control Releases Change the way your team releases software. Roll out, segment, and optimise—with granular control. Stay secure with on premise and private cloud hosting. Feature flags: Release features behind the safety of a feature flag Make changes remotely: Easily toggle individual features on and off, and make changes without deploying new code A/B testing: Use segments to run A/B and multivariate tests on new features Segments: Release features to beta testers, collect feedback, and iterate Organisation management…
read the full Flagsmith overview →
About Featurevisor
Feature management with version control Manage your feature flags, experiment variations, variables for remote configuration declaratively from the comfort of your Git workflow. Website Documentation Issues Contributing Changelog Built by @fahad19 and contributors How does it work? Three simple steps to visualize it: 1. Manage your Featurevisor project in a Git repository 1. Build and upload datafiles (static JSON files) to your CDN or custom server 1. Fetch the datafile in your application, and evaluate features using SDKs What do I need to bring to use Featurevisor? A Git repository for managing your project…
read the full Featurevisor overview →
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Frequently asked questions
Is Flagsmith or Featurevisor more popular?
Flagsmith has 6,638 GitHub stars and Featurevisor has 814. 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 (6,638 stars) or its BSD-3-Clause licence terms. Choose Featurevisor if its feature set, stack or MIT licence fits better. Both are self-hostable.