Experiment fearlessly, deliver confidently
The #1 Open-Source Feature Flag & Experimentation Platform
Trusted by thousands of organizations
Feature Flags & Experiments Together
Seamless integration makes it easy to 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.
We work with your data
GrowthBook is warehouse native, and works with your data where it already lives, allowing you to maintain control, increase privacy and security, and avoid vendor lock-in. We're integrated with all major SQL data sources, plus tools like Mixpanel and Google Analytics
... and natively support most event trackers
We have built in support for 15 common sources of data, including Google Analytics, Segment, RudderStack, Amplitude, Snowplow and more. Have a custom event tracker or use one not listed? Don't worry - data sources are fully customizable if you have unique data needs.
GrowthBook serves 100 billion+ feature flag lookups per day
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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Data science
Enterprise Statistics
GrowthBook's statistics package supports the most advanced techniques from letting you pick your engine (Bayesian, Frequentists, and Sequential) to CUPED to run experiments faster, to multiple metric corrections (Benjamini-Hochberg, Bonferroni) and data quality checks (SRM, etc).
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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
4,500 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.