Open Source Alternatives to LaunchDarkly

GrowthBook

Open-source feature flagging and A/B testing platform.

★ 7,309 Updated: Feb 2026 Status: Slowing

Flagsmith

Open-source feature flag platform

★ 6,202 Updated: Jan 2026 Status: Slowing

Flipt

Enterprise-ready feature flag solution

★ 4,698 Updated: Feb 2026 Status: Slowing

FeatBit

Open-source feature flag service

★ 1,728 Updated: Feb 2026 Status: Slowing