Open-source feature management platform
Feature toggles, gradual rollouts and SDKs for most languages.
- Language
- TypeScript
- Licence
- AGPL-3.0
- Stars
- 14k
- Latest
- v8.2.0
- Last push
- 2026-10-06
alternatives to
LaunchDarkly
Hosted feature flag and experimentation service. A closed product from LaunchDarkly.
Side by side
| Tool | Fit | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|---|
| Unleash | Full replacement | 14k | AGPL-3.0 | Open source | Yes | TypeScript | v8.2.0 | 2026-10-06 |
| GrowthBook | Full replacement | 8.5k | Other | Open core | Yes | TypeScript | v5.1.0 | 2026-10-06 |
| Flagsmith | Full replacement | 6.6k | BSD-3-Clause | Open source | Yes | Python | v2.280.0 | 2026-10-06 |
| FeatBit | Full replacement | 1.9k | MIT | Open source | Yes | C# | 6.0.0 | 2026-09-30 |
| Flipt | Partial | 4.9k | Other | Source available | Yes | Go | v2.13.1 | 2026-10-06 |
| GO Feature Flag | Partial | 2.1k | MIT | Open source | Yes | Go | v1.56.0 | 2026-10-06 |
| flagd | Partial | 1k | Apache-2.0 | Open source | Yes | Go | core/v0.18.0 | 2026-10-06 |
| Featurevisor | Partial | 812 | MIT | Open source | Yes | TypeScript | v3.11.0 | 2026-09-08 |
Every alternative
8 alternatives
Open Source Feature Flags, Experimentation, and Product Analytics
Feature flags with A/B testing analysed from your own data warehouse.
- Language
- TypeScript
- Licence
- Other
- Stars
- 8.5k
- Latest
- v5.1.0
- Last push
- 2026-10-06
Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.
Feature flags, remote config and segments.
- Language
- Python
- Licence
- BSD-3-Clause
- Stars
- 6.6k
- Latest
- v2.280.0
- Last push
- 2026-10-06
Enterprise-grade feature flag platform that you can self-host. Get started - free.
Feature flags with targeting rules, percentage rollouts, experiments and audit logs, with server and client SDKs.
Enterprise-ready, Git native feature management solution
Feature flags and segments with their state kept in git; no experimentation.
GO Feature Flag is a simple, complete and lightweight self-hosted cloud native feature flag solution 100% Open Source — built on OpenFeature 🎛️
Flags kept in a file you host and served through OpenFeature providers, with rollouts and targeting.
A feature flag daemon with a Unix philosophy
Evaluates flags from files, HTTP or Kubernetes resources for OpenFeature SDKs, with no management UI.
- Language
- Go
- Licence
- Apache-2.0
- Stars
- 1k
- Latest
- core/v0.18.0
- Last push
- 2026-10-06
Feature flags, experiments, and remote config management with version control
Flags, segments and experiments declared in git and built into static datafiles served from a CDN.
- Language
- TypeScript
- Licence
- MIT
- Stars
- 812
- Latest
- v3.11.0
- Last push
- 2026-09-08
Head to head
- FeatBit vs Featurevisor
- FeatBit vs flagd
- FeatBit vs Flagsmith
- FeatBit vs Flipt
- FeatBit vs GO Feature Flag
- FeatBit vs GrowthBook
- FeatBit vs Unleash
- Featurevisor vs flagd
- Featurevisor vs Flagsmith
- Featurevisor vs Flipt
- Featurevisor vs GO Feature Flag
- Featurevisor vs GrowthBook
- Featurevisor vs Unleash
- flagd vs Flagsmith
- flagd vs Flipt
- flagd vs GO Feature Flag
- flagd vs GrowthBook
- flagd vs Unleash
- Flagsmith vs Flipt
- Flagsmith vs GO Feature Flag
- Flagsmith vs GrowthBook
- Flagsmith vs Unleash
- Flipt vs GO Feature Flag
- Flipt vs GrowthBook
- Flipt vs Unleash
- GO Feature Flag vs GrowthBook
- GO Feature Flag vs Unleash
- GrowthBook vs Unleash
About LaunchDarkly
- Vendor
- LaunchDarkly