GrowthBook
Open-source feature flags and A/B testing
- Researched profile
- Free plan
- Open source
What users say
24 reviews on 1 site
- Starting price
- Free; Pro $40 per seat/month
- Free option
- Free plan
- Pricing
- Free plan + paid
- Licence
- Open source
- Deployment
- Web, Self-hosted
- Founded
- 2020
The lean-stack take
Lean product teams can treat each release as an experiment. Features roll out behind flags, experiments measure the effect, and teams keep only the changes that improve the metrics they care about.
Best for
Product teams that want feature flags and experiments with predictable, seat-based pricing or self-hosting.
Watch out for
The cloud Starter plan is limited to 3 users, and advanced experiment types need Pro or Enterprise.
About
About GrowthBook
GrowthBook is an open-source platform for feature flags, A/B testing and product analytics. It can run in GrowthBook's cloud or be self-hosted.
Written by lean-stack from GrowthBook's public pages. Vendors can replace it with their own description by claiming this profile.
See it in action
GrowthBook in 4:44
A short overview from GrowthBook on YouTube. It shows the product as the vendor presents it, so pair it with the strengths and limitations below.
- Video
- GrowthBook in 5 Minutes: Feature Flags, Experiments & Product Analytics
- Channel
- GrowthBook
Features
What GrowthBook offers
Feature flags
Unlimited feature flags on every plan, for gradual and safe releases.
A/B testing
Unlimited experiments to test changes against a control.
Product analytics
Analytics in the same platform as flags and experiments.
Warehouse-native
Use your own data warehouse or a managed warehouse.
Visual editor
An AI visual editor for front-end tests on the Pro plan.
Multi-arm bandits and safe rollouts
Advanced experiment types on Pro and Enterprise.
Power calculator
Plan sample sizes before running a test (Pro).
Self-hosting
The open-source edition runs on your own infrastructure with unlimited users.
Lean techniques supported
The lean practices GrowthBook is built to support.
Pricing
GrowthBook pricing and plans
Checked on the vendor's pricing page, October 3, 2026
Starter (cloud)
$0
Free
- Up to 3 users
- 1 project
- Unlimited flags and experiments
- Managed warehouse up to 1M events/month
Pro (cloud)
$40 per seat/month
Monthly
- Up to 30 users
- 3 projects
- AI visual editor
- Multi-arm bandits and safe rollouts
- Managed warehouse 2M events/month
Enterprise
Custom
- Approval workflows
- SSO and SCIM
- 99.99% uptime SLA
- Dedicated support
Open source (self-hosted)
$0
Free
- Unlimited users
- Unlimited flags and experiments
- Community support
Monthly cost for your team
- Starter (cloud)Free
- Pro (cloud)$400
- EnterpriseQuote
- Open source (self-hosted)Quote
Free plans cap features rather than seats. Check the plan above before counting on it for a large team.
Seat-based pricing, not per monthly active user or API event. Managed warehouse events above the Pro allowance cost $30 per million. Team costs use the published per-user price before tax. Prices change often, so confirm them with the vendor.
Strengths and limitations
What stands out, and what to watch
Strengths
- Open source and free to self-host
- Unlimited flags and experiments on every plan
- Seat-based pricing instead of per-event pricing
- Works with your own data warehouse
- Flags, experiments and analytics in one tool
Limitations
- Cloud Starter limited to 3 users
- Advanced experiment types need Pro or Enterprise
- Self-hosting needs engineering time
Based on the vendor's published plans and documentation, not a hands-on test.
Fit
Is GrowthBook right for your team?
A good fit if…
- You want to ship features as experiments
- Your data is already in a warehouse
- You prefer open source or self-hosting
- You want pricing that does not grow with traffic
Look elsewhere if…
- Non-technical marketers need a no-code website testing tool
- You do not have engineers to add flags
- You need a full digital experience suite
Reviews
What GrowthBook users say
From public review sites, checked October 3, 2026
Ratings and mention counts as published by each site. We link to the reviews rather than copy them, and we don't average or adjust the numbers.
Similar tools
GrowthBook alternatives
Optimizely
Price on request
Enterprise digital experience platform offering web and feature experimentation alongside CMS and personalization.
PostHog
Free plan + paid
Open-source all-in-one product analytics with feature flags, A/B tests, session replay and surveys for fast iteration.
| Tool | Pricing | Starting price | Free plan or trial | Deployment |
|---|---|---|---|---|
| GrowthBook | Free plan + paid | Free; Pro $40 per seat/month | Free plan | Web, Self-hosted |
| Optimizely | Price on request | Quote-based | None listed | Web |
| PostHog | Free plan + paid | Free tier; usage-based pricing above it | Free plan | Web, Cloud (US and EU), Open source |
From each vendor's published pricing. Check current prices on their sites.
FAQ
GrowthBook: common questions
Is GrowthBook free?
How much does GrowthBook Pro cost?
Does GrowthBook charge by traffic?
Can I self-host GrowthBook?
Does GrowthBook include analytics?
For the GrowthBook team
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