GrowthBook is an Open-source feature flagging and A/B testing by GrowthBook, Inc. This profile pulls together GrowthBook's ratings across the major review sites, its company and funding details, leadership, features, pricing, and the latest news, with every external source cited at the bottom.
About GrowthBook, Inc.
GrowthBook is a San Francisco-based open-source feature flagging and A/B testing platform founded in 2021 by Jeremy Edelblut and Graham McNicoll. The platform is designed as an affordable alternative to LaunchDarkly and Optimizely, offering feature flags, gradual rollouts, and statistical A/B testing powered by Bayesian analysis. GrowthBook connects directly to your existing data warehouse (BigQuery, Redshift, Snowflake, etc.) for experiment analysis rather than requiring you to send data to a third-party system. The platform can be self-hosted for free or used as a managed cloud service. GrowthBook raised $7M in seed funding and has seen rapid adoption among engineering and product teams.
| Category | Open-source feature flagging and A/B testing |
| Company | GrowthBook, Inc. |
| Founded | 2021 |
| Headquarters | San Francisco, California, US |
| Industry | Software Development · Feature Flagging / Experimentation |
| Team size | <50 |
| Ownership | Private, Seed ($7M) |
| Founder / CEO | Jeremy Edelblut (CEO) and Graham McNicoll |
| Specialties | Feature flags, A/B testing, gradual rollouts, Bayesian statistics, data warehouse integration |
| Website | growthbook.io |
Find GrowthBook on: Crunchbase · LinkedIn · G2
GrowthBook ratings across the web
Aggregated from the major review platforms. Each links to the source.
Rating breakdown
Per-category scores from G2, ~50 reviews, 2025-2026.
Who uses GrowthBook
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What people say about GrowthBook
Our synthesis across ~50 G2 reviews and community discussion, 2025-2026. No fabricated quotes, this is the consistent pattern across reviews and third-party analyses.
Most praised
- Warehouse-native approach means experiment data never leaves your own infrastructure
- Self-hosted option makes it essentially free for teams that can manage infrastructure
- Bayesian statistics engine is more practical than frequentist testing for low-traffic experiments
- SDK is lightweight and works with any tech stack
Most cited complaints
- Smaller team means slower feature development than LaunchDarkly
- Self-hosted version requires infrastructure management
- G2/Capterra review count is low; harder to validate reputation
What we found testing it
What's great
- Only open-source tool with a native BigQuery, Snowflake, and Redshift connection; experiment results pull directly from your warehouse without a middleman SDK event stream
- Visual A/B test editor ships at Pro tier ($40/seat/mo), letting non-engineer product managers create experiments without writing flag code
- Free OSS tier covers unlimited feature flags, unlimited experiments, and unlimited traffic with no MAU caps
Watch-outs
- 24 G2 reviews is the smallest review base in this guide; real production edge cases surface less often in community forums than for LaunchDarkly or Statsig
- MongoDB dependency in the self-hosted stack adds operational overhead compared to Unleash's Postgres-first approach
- Enterprise features like approval workflows and SSO/SAML require the custom Enterprise tier; the Pro cloud tier is priced per-seat which can add up for larger teams
GrowthBook funding & ownership
| Round | Amount | Date | Lead investor |
|---|---|---|---|
| Seed | $7M | 2022 | Y Combinator |
Early-stage but growing. Open-source community provides a strong adoption moat. The warehouse-native approach is a smart architectural bet for data-mature companies.
GrowthBook features & integrations
Security & compliance
| Standard | Availability |
|---|---|
| GDPR | Yes |
| HIPAA | No |
| SOC 2 Type II | Yes |
| SSO / SAML | Yes (Pro+) |
Integrations: BigQuery, Snowflake, Redshift, Databricks, ClickHouse, MySQL, PostgreSQL, Segment, Mixpanel, Amplitude, Slack, and Vercel.
GrowthBook leadership
GrowthBook pricing
| Plan | Price | Best for |
|---|---|---|
| Starter (Cloud) | Free | Small teams, 3 seats |
| Pro (Cloud) | $20/seat/mo | Growing teams with more experiments |
| Self-hosted | Free | Teams that can manage their own infrastructure |
| Enterprise | Custom | Large orgs, SSO, dedicated support |
The catch: GrowthBook Cloud is free for up to 3 seats and 5 feature flags. Pro: $20/seat/month. Enterprise: custom. Self-hosted is always free with full feature access.
GrowthBook alternatives & where it appears
Featured in our guides
GrowthBook product changelog
What GrowthBook has actually shipped, summarized from its own release notes and dated. Not auto-generated, updated as part of our freshness checks.
- February 1, 2026
- October 1, 2025
- February 1, 2025
Latest GrowthBook news
Auto-pulled from Google News, refreshed on each deploy. Headlines link to the source.
- LaunchDarkly vs Unleash vs GrowthBook: $2,800 Gap [2026] - tech-insider.orgSun, 30 Aug 2026
- Why Most A/B Tests Are Lying to You - Towards Data ScienceWed, 11 Mar 2026
- GrowthBook - CrunchbaseThu, 18 Feb 2021
- Claude Code's source reveals extent of system access - The RegisterWed, 01 Apr 2026
GrowthBook FAQs
How does GrowthBook compare to LaunchDarkly?
GrowthBook is 80-90% cheaper than LaunchDarkly for equivalent feature flag usage. LaunchDarkly has a more polished UX, better targeting rules, and stronger enterprise support. GrowthBook wins on cost and warehouse-native experiment analysis. The right choice depends on team sophistication and budget.
Can GrowthBook be self-hosted?
Yes. GrowthBook is fully open source and can be self-hosted on your own infrastructure. The self-hosted version has full feature parity with the cloud version.
Sources
Every external figure on this page traces to a public source, last collected on the dates shown.
- GrowthBook website — Product and pricing (accessed 2026-09-02)
- G2 GrowthBook reviews — User reviews (accessed 2026-09-02)