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Compare Feature flags
Structured facts from the catalog for the leading projects in this category.
| Attribute | Unleash | GrowthBook | flagsmith | go-feature-flag | FeatBit | bucketeer |
|---|---|---|---|---|---|---|
| GitHub stars | 13,848 | 8,462 | 6,585 | 2,120 | 1,910 | 481 |
| License | AGPL-3.0 | Custom | BSD-3-Clause | MIT | MIT | Apache-2.0 |
| Self-hosted | Yes | Yes | Yes | Yes | Yes | Yes |
| Docker noted | — | — | Yes | Yes | Yes | Yes |
| Cloud / hosted | — | — | Yes | — | — | — |
| Primary language | TypeScript | TypeScript | Python | Go | C# | Go |
| Last commit | 2026-10-01 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-09-30 | 2026-10-01 |
| Difficulty | Moderate | Moderate | Not assessed | Not assessed | Not assessed | Not assessed |
Pairwise comparisons
Not a sponsored ranking. Repository activity is a signal, not a quality guarantee.