Feature flag tools directory
3 feature flag tools compared on license, GitHub activity, hosting, free plan, starting price and OpenFeature support. Every fact links to its source; GitHub and npm numbers were last refreshed on November 15, 2026.
| Tool | License | GitHub stars | Hosting | Paid from | npm / week |
|---|---|---|---|---|---|
| Unleash | AGPL-3.0 | 14.3K | Cloud, Self-hosted, Hybrid (Enterprise) | $75 per seat per month (Pay-As-You-Go, hosted). Self-hosted paid plans need at least 5 seats. | 938K |
| GrowthBook | MIT core; enterprise directories under the GrowthBook Enterprise License | 8.6K | Cloud, Self-hosted | $40 per seat per month (Pro: up to 30 users, 3 projects). | 1.5M |
| Flagsmith | BSD-3-Clause | 7.3K | Cloud, Private cloud, Self-hosted | $40 per month billed yearly, or $45 monthly (Start-Up: 1M requests per month, 3 team members). | 171.4K |
Sorted by GitHub stars. Prices as published by each vendor on the date shown on its page.