GrowthBook
Open-source platform for feature flagging and A/B testing — run experiments and manage features without deploying code.
| What is it | Open-source platform for feature flagging and A/B testing — run experiments and manage features without deploying code. |
|---|---|
| Pricing | Freemium — from $40/mo |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Works with | Integrately |
| Best for | safely rolling out new features to a subset of users, testing which UI change leads to more sign-ups |
| Domain registered | 2020 |
Data updated Aug. 1, 2026
What does GrowthBook do?
GrowthBook is a platform for feature flagging and A/B testing. It lets development teams deploy code with new features hidden behind flags, which they can then turn on for specific users or groups. This allows for safe, controlled rollouts and easy rollbacks without needing to redeploy the application. The core idea is to separate code deployment from feature release, giving teams more control and reducing risk.
The tool works by providing an SDK that integrates with your application. You define features and experiments in the GrowthBook interface, and the SDK checks these rules to determine what each user sees. A key aspect is its open-source nature; you can self-host the entire platform. It also includes a visual editor so product managers can create and modify experiments without writing code, and it connects to data warehouses like Snowflake or BigQuery to analyze experiment results directly.
This tool is most useful for software teams that want to move faster and make data-driven decisions. Product managers can use it to test different versions of a feature to see which performs better. Development teams benefit from reducing the complexity of their release process and quickly disabling problematic features. Data analysts can tie experiment data directly to business metrics to understand the real impact of every change.
Key features
What makes it stand outWho is GrowthBook for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardStarter
- 3 users
- 1,000,000 cdn requests
- 5 cdn bandwidth
- 1,000,000 managed warehouse events
- Unlimited feature flags
- Unlimited experiments
- Warehouse Native
- Unlimited Traffic (MAU/MTU)
- Community support
- Unlimited Environments & Projects
Pro
Everything in Starter, plus:
- 50 users
- 2,000,000 cdn requests
- 20 cdn bandwidth
- 2,000,000 managed warehouse events
- Advanced Statistics
- Visual A/B Test Editor
- Product Analytics (Beta)
- CUPED, Sequential, Sticky Bucketing
- Multi-Arm Bandits
- Safe Rollouts
- Advanced permissioning
- Power Calculator
- Premium Email & In-App Support
Enterprise
Everything in Pro, plus:
- custom users
- custom cdn requests
- custom cdn bandwidth
- custom managed warehouse events
- Advanced Access Control
- Optimizations for Large Datasets
- Cross Experiment Insights
- Advanced Metrics
- SSO / SAML integration
- Data Pipelines
- Prerequisite Flags
- Approval Flows
- Exportable audit logs
- Holdouts
- Advanced Organization
- Team Training
- Enterprise SLAs
- Dedicated Support
Trust & presence
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