R.I.P.

Open-source alternatives to Optimizely

5 projects replace Optimizely, the experimentation platform. 5 shipped code in the last 30 days.

5 open-source alternatives

Most-starred first. Stars, growth and activity are live from GitHub.

PostHogMost adopted

Unlock Product Insights with Open-Source Analytics

Custom licenseupdated today

Unleash#2 by stars

Feature flags for rapid, risk-free software deployment

AGPL-3.0updated today

GrowthBookGrowing fastest

Open-source A/B testing and feature flagging platform

Custom licenseupdated today

Flagsmith#4 by stars

Feature flags and remote config for rapid deployment

BSD-3-Clauseupdated today

FeatBit#5 by stars

Open-source feature flag management for seamless deployments

MITupdated today