head to head · open source
GrowthBook vs Flipt
GrowthBook has 8,376 GitHub stars, 849 forks, 793 open issues and last shipped yesterday. Flipt has 4,902 stars, 308 forks, 42 open issues and last shipped yesterday. GrowthBook leads on adoption by 71% (8,376 vs 4,902 stars). GrowthBook is written in TypeScript under a custom or non-standard licence; Flipt is written in Go under a custom or non-standard licence. GrowthBook has attracted 10% as many forks as stars, Flipt 6%. GrowthBook was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (continuous-delivery), 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.
← all 8884 open source comparisons
Side by side
| GrowthBook | Flipt | |
|---|---|---|
| GitHub stars | ★ 8.4K | ★ 4.9K |
| License | Custom / other | Custom / other |
| Written in | TypeScript | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 849 | ⑂ 308 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick GrowthBook if
- You weight community size — 8.4K stars and counting
- You want the Custom / other 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 GrowthBook
GrowthBook is an open source platform for feature flags, A/B experimentation, and product analytics that product, data, and platform teams can either consume through a hosted cloud account or run entirely on their own infrastructure.
read the full GrowthBook 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 →
More in Security & Privacy
Related comparisons
More Application Security projects
Compare either of these against the rest of the Application Security field.
Frequently asked questions
Is GrowthBook or Flipt more popular?
GrowthBook has 8,376 GitHub stars and Flipt has 4,902. GrowthBook has the larger community by that measure.
Are GrowthBook and Flipt free?
Neither GrowthBook nor Flipt declares a licence in this registry, so check each project's own repository before relying on either for a commercial use. Both are free to self-host.
What is the difference between GrowthBook and Flipt?
GrowthBook 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, GrowthBook or Flipt?
Choose GrowthBook if you want the larger community (8,376 stars) or its Custom / other licence terms. Choose Flipt if its feature set, stack or Custom / other licence fits better. Both are self-hostable.