Experiment fearlessly, deliver confidently

The #1 Open-Source Feature Flag & Experimentation Platform

Trusted by thousands of organizations

Manage Feature Flagging & Experiments Together

Safely release, target and measure the impact of product changes from a single platform.

Feature Flagging

Launch with confidence. Maintain an uncluttered code base as you scale.

A/B Testing

Manage experiments end-to-end for continuous product improvements.

GrowthBook serves 100 billion+ feature flag lookups per day

Maintain Full Control of Your Data

GrowthBook provides complete data transparency for more accurate and trustworthy results.
Open Source

Self-host for Ultimate Control and Security

We build GrowthBook in the open on GitHub and release daily. GrowthBook is certified SOC II and GDPR compliant.
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Warehouse Native

Maintain Privacy & Control in Your Current Data Stack

Maintain control of your data. Pull metrics and data from wherever it’s currently stored to run and measure experiments.
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Designed for Speed & Optimal User Experience

Our industry-leading lightweight SDKs with local real-time evaluation means superfast load times. Combine with our highly-customizable cacheing for uptime and resiliency.
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Built for Teams

Promote a culture of experimentation across your organization.

Industry-leading Lightweight SDKs

Our JS SDK is 9k—less than half the size of our closest competitors. Dramatically reduce load times with our open source SDKs for JavaScript, Python, Ruby, PHP. Use our intuitive API for other languages.
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Enterprise-class Experimentation

Our robust Bayesian and Frequentist statistic engines, along with our configurable metric library, means you can customize GrowthBook to exactly match your needs.
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Independently Deploy New Experiments

Product managers can deploy new features, target roll outs, and deploy new A/B tests all from our easy-to-use platform.
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Manage No-code Website Updates

Our Visual Editor allows you to run A/B tests on your website without requiring engineering support or code changes.
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Join Our Community

Discuss the future of product experimentation or chat with our team
3,100 members and growing

Get answers quickly on GrowthBook Slack

Ask questions, give feedback, and learn from others who are actively pursuing a culture of experimentation.
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Easily measure the success of your products while minimizing engineering and data resources.

Pat McGee
Principal Engineer, GoodDog
"GrowthBook checked all my boxes. The fact that it just queries our data warehouse means we can set up much more sophisticated metrics that are based on tables our data team has built with DBT instead of being tied to just querying raw event data."
Roger Pedroso
Head of Software Engineering, Newfold
"Our LATAM team is really enjoying GrowthBook. We migrated all the feature toggles from Optimizely and everything is working fine."
Alexander Harmsen
CEO & Founder, Global Predictions
"We've been using the product over the last month to run a few dozen tests and have already increased our overall funnel conversion by about 54%!"

Ready to get started?

Explore GrowthBook on your own terms. Create your free account, or contact us for a tailored demo, with the option to discuss your use case.

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Seat-based pricing for teams of all sizes.
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Start your Integration

Get set up in minutes on GrowthBook Cloud or self-hosted.