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Flagsmith Experiments

Flagsmith Experiments

Open-source A/B testing built on your feature flags

0upvotes
Launched October 21, 2026

About Flagsmith Experiments

Flagsmith Experiments is an innovative open-source platform that seamlessly integrates A/B testing directly into your existing feature flag infrastructure. Designed for developers and product teams, it allows users to run experiments on features they already manage via feature flags, making it easier to validate changes and optimize user experiences. By leveraging Bayesian analysis, Flagsmith provides clear insights on which variant performs best based on selected metrics, empowering data-driven decision-making. Its flexibility to be self-hosted or used in the cloud, along with support for popular data warehouses like ClickHouse and Databricks, makes it highly adaptable to various technical environments. This tool stands out by combining feature flag management with experimental analytics, streamlining workflows and reducing the need for separate testing solutions, all while maintaining transparency through its open-source nature.

Screenshots

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Pros

  • ✓Open-source and highly customizable for different deployment preferences
  • ✓Integrates directly with existing feature flags for streamlined experimentation
  • ✓Supports Bayesian analysis for more accurate and interpretable results
  • ✓Flexible data warehouse options including self-hosted and cloud solutions
  • ✓Ideal for developers and teams seeking integrated feature management and testing

Cons

  • ✗May require technical expertise to set up and optimize
  • ✗Limited user interface features compared to commercial A/B testing tools
  • ✗Community support and documentation might be less extensive than proprietary solutions

Use Cases

1Testing new feature variants within existing product features
2Optimizing onboarding flows through targeted experiments
3Validating UI/UX changes based on user engagement metrics
4A/B testing different pricing or subscription options
5Evaluating the impact of feature rollouts before full deployment
6Experimenting with backend feature configurations for performance improvements

Pricing

Pricing not verified

Quick Info

Upvotes0
Comments3
Launched10/21/2026

Topics

Open SourceA/B TestingDeveloper Tools

Makers

Gagan Trivedi

Gagan Trivedi

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