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Abby

Open-source A/B testing and feature flags

Web Analytics ★ 166 stars Medium setup MIT

Abby is an open-source platform for A/B testing and feature flags that can be self-hosted. It reports conversion metrics and lets teams roll out features gradually.

Official siteSource code

Key features

  • A/B testing
  • Feature flags
  • Conversion metrics
  • Gradual rollouts

Strengths

  • Released under the MIT license
  • First-class Docker support for quick deployment
  • Written in TypeScript
  • Lightweight — runs in 512 MB RAM

Abby replaces

Self-hosted LaunchDarkly alternativesSelf-hosted Optimizely alternatives

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