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Teams wanting open-source experimentation
DIY setup for self-hosted
Typical cost: Free
Teams wanting open-source experimentation
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GrowthBook is an open-source A/B testing platform. Feature flags, experiments, and Bayesian statistics with self-hosted or cloud options.

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Best for: Developer-first teams who want full product insights without vendor lock-in

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Strong dev-tools solution. Teams wanting open-source experimentation.
Reviewed Dec 2025 by our editorial team
Includes: Unlimited on self-hosted
Note: Cloud has usage limits