Compare / GrowthBook vs Unleash
GrowthBook vs Unleash
Pick Unleash if you want the published LaunchDarkly/Split.io path. Pick GrowthBook if you want MIT-core flags and experiments — skip enterprise/; GitHub license field is unset (Other).
Facts checked 22 Oct 2026. License, language, and GitHub activity come from the catalog or the project's own repo. "Not in the catalog row" means the public catalog dump does not store that number.
GrowthBook in the catalog Unleash in the catalog Start on Railway
How they compare
| GrowthBook | Unleash | |
|---|---|---|
| License | Other (catalog); MIT core if you skip enterprise/; GitHub license field is unset source | AGPL-3.0 (catalog) source |
| Language | TypeScript (catalog) | TypeScript (catalog) |
| GitHub activity | 8,521 stars in the catalog source | 13,891 stars in the catalog source |
| Self-host | Named on /best/feature-flags. Skip enterprise/. | Published as /stacks/unleash-flags. Flag service. |
| Best for | Experiments next to flags if you accept the license caveat. | The published LaunchDarkly replacement. |
Self-hosting and resource needs
Unleash is /stacks/unleash-flags. GrowthBook is growthbook/growthbook. Flagsmith is the BSD sibling — /compare/unleash-vs-flagsmith. Do not deploy enterprise/ and call that OSS.
FAQ
- Why is GrowthBook's license Other?
- GitHub's license field is unset. The project documents MIT for the core and a separate enterprise/ tree. Skip enterprise/.
- Flagsmith?
- /compare/unleash-vs-flagsmith.
- Are these free?
- Unleash is AGPL-3.0. GrowthBook core is MIT if you skip enterprise/. You pay hosting.
- How do I deploy GrowthBook?
- Follow growthbook.io self-host docs. The published path remains /stacks/unleash-flags.
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