Experiment fearlessly, deliver confidently
The #1 Open-Source Feature Flag & Experimentation Platform
Trusted by thousands of organizations
Easily measure the success of your products while minimizing engineering and data resources.
John Resig
Khan Academy
GrowthBook is so good. One of the only options that's actually able to load fast, be cacheable, support storing data off-site, and handle synchronous rendering on the client.
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."
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%!"
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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Performance
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.
Visual Editor Details
Join Our Community
Discuss the future of product experimentation or chat with our team
4,200 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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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.