Testing · head to head
GrowthBook vs Playwright
GrowthBook
Testing
Open source feature flags and A/B testing that run experiment analysis inside your own data warehouse
- From
- Free
- Rated
- -
Playwright
Testing
Open-source web automation framework for testing and scripting across browsers
- From
- Free
- Rated
- -
The short version
- Each has a real cost: GrowthBook warehouse-native analysis is only an advantage if you have a warehouse with clean event data in it; without one, GrowthBook has nothing to compute against and you are back to buying an event-collecting platform.; Playwright requires programming language knowledge; not suitable for non-technical QA staff
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which GrowthBook and Playwright actually diverge.
| Attribute | GrowthBook | Playwright |
|---|---|---|
| Pricing model | Per user per month | open-source |
| Platforms | Web, Self-hosted, Docker | Windows, macOS, Linux |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Testing).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in GrowthBook
- Feature flags
- Warehouse-native analysis
- Reusable metric definitions
- Bayesian and frequentist engines
- CUPED variance reduction
- Visual editor
- Self-hosting
- Guardrail metrics
Only in Playwright
Nothing recorded that GrowthBook does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
GrowthBook
- An engineering team that wants feature flags without a per-monthly-active-user bill that grows with product successnot Playwright
- A data team that needs experiment results to reconcile exactly with the metrics reported in its BI toolnot Playwright
- A company with data residency or privacy constraints that cannot send user-level event data to a third-party vendornot Playwright
- Running long-tail experiments where sequential testing and CUPED shorten the time to a decision on low-traffic surfacesnot Playwright
Playwright
- End-to-end testing for web applicationsnot GrowthBook
- Cross-browser compatibility testingnot GrowthBook
- Accessibility testing and automated screen reader validationnot GrowthBook
- Web scraping and data extraction automationnot GrowthBook
- AI agent web automation via MCP integrationnot GrowthBook
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
GrowthBook
- Warehouse-native analysis is only an advantage if you have a warehouse with clean event data in it; without one, GrowthBook has nothing to compute against and you are back to buying an event-collecting platform.
- Metrics are SQL, so a marketing or product team without data engineering support cannot define or fix them, and a badly written metric silently produces a confident wrong answer.
- Cloud Pro bills per seat and then adds CDN request and bandwidth overages, so a high-traffic site can find the variable component exceeds the seat cost it budgeted for.
- Self-hosting means you own the Mongo database, the SDK endpoint availability and the upgrade path, and a flag service that is down is a production incident, not an analytics inconvenience.
- The statistics engine exposes real choices, Bayesian versus frequentist, sequential testing, variance reduction, and the tool will not stop a team that configures them wrongly, so it rewards statistical literacy and punishes its absence.
Playwright
- Requires programming language knowledge; not suitable for non-technical QA staff
- WebKit implementation less mature than Chromium; occasional webkit-specific issues
- Mobile browser testing relies on emulation, not real devices
- No managed cloud infrastructure; users must host CI/CD runners or pay for third-party services
Pricing, plan by plan
GrowthBook
Free- Open source (self-hosted)Free
- Unlimited users, feature flags and experiments
- One project
- MIT licensed, you run the infrastructure
- Starter (cloud)Free
- Up to 3 users
- 1 project
- Unlimited flags, experiments and traffic
- Pro (cloud)$40/month
- Per seat, up to 50 users
- 3 projects
- CDN overage at $10 per million requests beyond the included allowance
- Enterprise$undefined/year
- Unlimited users and projects
- SSO, audit logs and advanced permissions
- Available on cloud or self-hosted
Playwright
FreeNo published plan breakdown. See the Playwright review.
Which should you pick?
Choose GrowthBook if
- You need feature flags.
- You want to start without paying.
- You work on Web, Self-hosted, Docker.
- You also want warehouse-native analysis.
Choose Playwright if
- You want to start without paying.
- You work on Windows, macOS, Linux.
Questions people ask
- Is GrowthBook or Playwright better?
- Neither clearly leads. GrowthBook starts at Free and Playwright at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, GrowthBook or Playwright?
- GrowthBook starts at Free and Playwright at Free.
- Does GrowthBook or Playwright run on more platforms?
- GrowthBook runs on Web, Self-hosted, Docker. Playwright runs on Windows, macOS, Linux.
- Can I use GrowthBook for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is GrowthBook best used for?
- GrowthBook is most often used for an engineering team that wants feature flags without a per-monthly-active-user bill that grows with product success, a data team that needs experiment results to reconcile exactly with the metrics reported in its bi tool, a company with data residency or privacy constraints that cannot send user-level event data to a third-party vendor, running long-tail experiments where sequential testing and cuped shorten the time to a decision on low-traffic surfaces. Of those, an engineering team that wants feature flags without a per-monthly-active-user bill that grows with product success and a data team that needs experiment results to reconcile exactly with the metrics reported in its bi tool are not what Playwright is typically brought in for.
- What can GrowthBook do that Playwright cannot?
- GrowthBook covers Feature flags, Warehouse-native analysis, Reusable metric definitions, Bayesian and frequentist engines.
Answered from the vendors’ own pages
GrowthBook: Is the self-hosted version actually usable, or crippled?
It is genuinely usable: unlimited users, flags and experiments on one project under an MIT licence. The paid tiers add multiple projects, SSO, audit logs and support.
Playwright: How much does Playwright cost?
Playwright is completely free. It is open-source software available for TypeScript, Python, .NET, and Java with no licensing fees or usage limits.
SourceGrowthBook: Do I need a data warehouse?
For experiment analysis, effectively yes. Feature flagging works without one, but the reason to choose GrowthBook over a flag-only tool is the warehouse-native statistics.
Playwright: Is Playwright open-source?
Yes, Playwright is open-source software. The source code is available on GitHub and can be used at no cost with no restrictions on commercial use.
SourceGrowthBook: How does the cost compare with LaunchDarkly or Optimizely?
GrowthBook charges per seat rather than per monthly active user or per tracked event, so cost stops scaling with traffic. At high volume that difference is large.
GrowthBook: Does it support mobile and server-side flags?
Yes, there are SDKs across JavaScript, React, Python, Go, Ruby, PHP, Java, Kotlin, Swift and more, covering client, server and mobile evaluation.
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