| Website | growthbook.io |
| Category | A/B Testing |
| License | Open Source (MIT) |
| Pricing | Free cloud tier and open-source self-hosted; paid plans start around $20/month. |
Overview
Open-source A/B testing and feature flags with cloud and self-hosted options, strong experimentation workflows for product teams.
Pros
- Open-source and self-hostable
- Combines A/B testing with feature flags
- Good analytics and experimentation workflows
- Flexible integrations with data sources
- Transparent pricing with a usable free tier
Cons
- Self-hosting requires technical setup
- Analytics configuration can be nontrivial
- Advanced features may require paid plans
- UI is functional but less polished than some competitors
Verdict
GrowthBook is a strong choice for teams that want open-source A/B testing plus feature flags without vendor lock-in. It works best for product and engineering teams with some technical capacity. The main trade-off is setup and analytics configuration, which can be more involved than fully managed tools.
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