GrowthBook

Open-source, warehouse-native A/B testing and feature flags that read straight from your data warehouse

GrowthBook is an open-core, warehouse-native platform for feature flags, A/B testing and product analytics. It runs experiment analysis directly on your own warehouse (Snowflake, BigQuery, Databricks and others), so data never has to leave your stack. Pricing is per seat rather than per tracked user or event, with a free cloud tier for up to 3 users and a free self-hosted option.

Features

  • Unlimited feature flags and experiments on all plans
  • Warehouse-native experiment analysis
  • Bayesian, frequentist, sequential testing and CUPED
  • AI visual editor and URL split tests (Pro)
  • 24+ SDKs, REST API, webhooks and MCP server
  • Cloud or self-hosted deployment

Pricing

From $40/user/mo

Free plan

Starter free (3 users cloud; unlimited self-hosted); Pro $40/seat/mo up to 30 users; Enterprise custom.

  • Starter

    Free

    Self-hosted free tier has unlimited users

    Up to 3 users on cloud; unlimited flags and experiments

  • Pro

    $40/user/mo

    CDN and event overages billed

    Up to 30 users; 3 projects; 2M managed-warehouse events

  • Enterprise

    Custom quote

    Custom quote

    SSO/SCIM, approvals, audit logs, 99.99% SLA

Not independently checked yet. See the vendor's pricing page

Strengths and limits

Strengths

  • Seat-based pricing stays predictable as traffic grows
  • Plugs into your existing data warehouse
  • Open source and self-hostable
  • Responsive support, including on Slack

Limits

  • Setup needs technical and statistics know-how
  • UI concepts can confuse less technical teammates
  • Onboarding and data validation take time

Best for and not for

Best for

  • Product and growth teams running experiments on warehouse data
  • Engineering teams replacing costly flag tools
  • Teams that require self-hosting

Not for

  • Marketers wanting a no-code-only testing tool with no data setup
  • Teams without a data warehouse or analytics engineer

Similar tools

Works with

Support

  • Community forum
  • Email
  • Live chat
  • Shared Slack channel

Frequently asked questions

Does GrowthBook have a free plan?
Yes. Starter is free for up to three users on GrowthBook Cloud; the free self-hosted plan has unlimited users.
How is GrowthBook priced?
Per seat, not per monthly active user or event. Pro is $40 per seat per month for up to 30 users.

Sources

Details last updated 16 Oct 2026.

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