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Open-source repos for A/B testing

8 repos tagged A/B testing, sorted by GitHub stars. Add filters from the other category types to narrow the list.

8repos tagged A/B testing

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  1. PostHog/posthog

    Product analytics suite with web analytics, session replay, feature flags and A/B testing.

    Product analytics, Analytics dashboards, Forms and surveys, Web, Docker, Product, Marketing, SaaS, Self hosters

    40.6k starsOtherUpdated 3 Nov 2026

  2. Unleash/unleash

    Feature flag management with gradual rollouts, targeting rules and SDKs for many languages.

    CI/CD, Web, Docker, Engineering, Product, SaaS, Self hosters

    13.9k starsAGPL-3.0Updated 2 Nov 2026

  3. growthbook/growthbook

    Feature flagging and A/B testing platform that runs experiments and analyzes results from your warehouse.

    Product analytics, Web, Docker, Product, Marketing, SaaS, Self hosters

    8.6k starsOtherUpdated 3 Nov 2026

  4. Flagsmith/flagsmith

    Feature flag and remote config service with segments, A/B tests and self-hosting.

    Web, Docker, Engineering, Product, SaaS, Self hosters

    6.6k starsBSD-3-ClauseUpdated 31 Oct 2026

  5. flipt-io/flipt

    Git-native feature flag service that stores flags alongside code and deploys as a single binary.

    CI/CD, Web, Docker, Engineering, SaaS, Self hosters

    4.9k starsOtherUpdated 30 Oct 2026

  6. thomaspoignant/go-feature-flag

    Lightweight feature flag solution that reads flag files from storage and supports OpenFeature.

    Web, Kubernetes, Engineering, SaaS, Self hosters

    2.1k starsMITUpdated 3 Nov 2026

  7. featbit/featbit

    Feature flag platform for progressive delivery and experimentation, built on .NET.

    Web, Docker, Engineering, Product, SaaS, Self hosters

    2k starsMITUpdated 2 Nov 2026

  8. e10v/tea-tasting

    Python package for analyzing A/B test results with common statistical methods.

    Data and analytics, Marketing, SaaS

    338 starsMITUpdated 12 Jul 2026