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Best Open Source Projects using Feature Flags

A collection of the best open source projects using Feature Flags. Find the best tools for Feature Flags that are open source and free to use/self-hostable.

Favicon of PostHog website

PostHog

PostHog provides open-source product analytics, session recording, feature flagging and A/B testing that you can self-host.

  • Stars

    18,941
  • Forks

    1,108
  • Last commit

    13 hours ago
Favicon of Unleash website

Unleash

Open-source feature management solution built for developers.

  • Stars

    10,526
  • Forks

    658
  • Last commit

    1 day ago
Favicon of OpenReplay website

OpenReplay

Session replay and analytics tool you can self-host. Ideal for reproducing issues, co-browsing with users and optimizing your product.

  • Stars

    8,996
  • Forks

    482
  • Last commit

    21 hours ago
Favicon of Countly website

Countly

A product analytics platform that helps teams track, analyze and act-on their user actions and behaviour on mobile, web and desktop applications.

  • Stars

    5,501
  • Forks

    963
  • Last commit

    23 hours ago
Favicon of GrowthBook website

GrowthBook

Open Source Feature Flagging and A/B Testing Platform

  • Stars

    5,703
  • Forks

    455
  • Last commit

    23 hours ago
Favicon of Flagsmith website

Flagsmith

Open Source Feature Flagging and Remote Config Service.

  • Stars

    4,490
  • Forks

    335
  • Last commit

    19 hours ago
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