head to head · open source
Unleash vs Flipt
Unleash has 13,811 GitHub stars, 896 forks, 39 open issues and last shipped yesterday. Flipt has 4,902 stars, 308 forks, 42 open issues and last shipped yesterday. Unleash leads on adoption by 182% (13,811 vs 4,902 stars). Unleash is written in TypeScript under AGPL-3.0; Flipt is written in Go under a custom or non-standard licence. Unleash has attracted 6% as many forks as stars, Flipt 6%. Flipt was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 4 topic tags (continuous-delivery, devops, 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 | Flipt | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 4.9K |
| License | AGPL-3.0 | Custom / other |
| Written in | TypeScript | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 896 | ⑂ 308 |
| 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 Flipt if
- You want the Flipt feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Go
- You evaluated both and Flipt 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 Flipt
Flipt is an open source, Git native feature management platform written in Go and distributed under a NOASSERTION license. It lives in the cloud native and DevOps ecosystem, sitting alongside continuous delivery, GitOps, and developer tooling, and it exposes its functionality through gRPC and a gRPC gateway HTTP interface. The project is self hosted and enterprise oriented, with a homepage at flipt.io and documentation at docs.flipt.io. Version 2 is the current line; version 1 remains available on the main branch with its own documentation set.
read the full Flipt overview →
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Frequently asked questions
Is Unleash or Flipt more popular?
Unleash has 13,811 GitHub stars and Flipt has 4,902. Unleash has the larger community by that measure.
Are Unleash and Flipt free?
Both are open source. Unleash is licensed under AGPL-3.0, and Flipt has no licence declared in this registry. Both are free to self-host.
What is the difference between Unleash and Flipt?
Unleash is written in TypeScript and Flipt in Go. 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 Flipt?
Choose Unleash if you want the larger community (13,811 stars) or its AGPL-3.0 licence terms. Choose Flipt if its feature set, stack or Custom / other licence fits better. Both are self-hostable.