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GrowthBook

Open-source feature flags and warehouse-native A/B testing, hosted or self-hosted.

Open sourceSelf-hostableProduct analytics tools
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About GrowthBook

GrowthBook is an open-source platform for feature flags and experimentation that analyses results on the data you already have. Instead of sending events to GrowthBook, you connect your warehouse or analytics source, such as BigQuery, Snowflake, Redshift, Databricks, ClickHouse or Mixpanel, and it runs the statistics there, with Bayesian and frequentist engines, CUPED and sequential testing. Feature flags come with lightweight SDKs for most languages, and newer features include a visual editor, multi-arm bandits, safe rollouts and product analytics dashboards. The self-hosted version runs as a single Docker image with MongoDB and has the same features as the cloud. The cloud Starter plan is free for a small team, Pro is priced per seat, and Enterprise is custom. It suits engineering and data teams who want control and low cost; marketers looking for a polished visual testing tool may find it too technical.

Best for: Engineering and data teams that want experiments on their own warehouse data.

Pros and cons

What works

  • Open source and fully self-hostable
  • Runs analysis on your existing warehouse
  • Unlimited flags, experiments and traffic even on free plan

Why people leave

  • Needs a data warehouse or analytics source to shine
  • Free cloud plan limited to 3 users
  • Less marketer-friendly than visual testing tools

Top GrowthBook alternatives

See all 6
  1. 1Statsig logo
    Statsig

    Hosted experiments with analytics and replay bundled in.

    66.5
  2. 2Eppo logo
    Eppo

    A commercial warehouse-native platform, now Datadog Experiments.

    62.6
  3. 3PostHog logo
    PostHog

    Flags and experiments plus analytics, with no warehouse needed.

    59.6
  4. 4Unleash logo
    Unleash

    Open-source flags with stronger enterprise release governance.

    57.2
  5. 5LaunchDarkly logo
    LaunchDarkly

    Managed feature management at large scale.

    55.3

Why people left GrowthBook

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

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GrowthBook: common questions

Is GrowthBook free?

Yes. GrowthBook is free, open-source software that you can host yourself.

Is GrowthBook open source?

Yes. The source code is on GitHub at growthbook/growthbook. You can also run it on your own server.

What platforms does GrowthBook run on?

GrowthBook is available for Web and Self-hosted.

What are the best alternatives to GrowthBook?

The highest-ranked GrowthBook alternatives right now are Statsig, Eppo and PostHog. See the full ranked list for pricing, platforms and verified facts.

See all 6 GrowthBook alternatives