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GrowthBook

Description

An open-source feature flagging and A/B testing platform that enables data-driven product development and experimentation.
GrowthBook is an open-source feature flagging and A/B testing platform designed to help product and engineering teams run experiments and manage feature releases safely. The platform provides robust feature flag management, A/B testing capabilities, and statistical analysis tools while being completely open-source and self-hostable. GrowthBook integrates with existing data sources and analytics platforms, allowing teams to make data-driven decisions without vendor lock-in. The platform is particularly valuable for companies that want to maintain control over their experimentation infrastructure and data while leveraging modern feature management practices.

Key Applications

  • Manage feature flags and gradual rollouts
  • Conduct A/B tests and experiments
  • Run statistical analysis on experiment results
  • Implement progressive delivery strategies
  • Integrate with existing data warehouses
  • Self-host experimentation infrastructure
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Who It’s For

GrowthBook is designed for engineering teams, product managers, data scientists, and privacy-conscious companies that want open-source, self-hostable experimentation and feature flagging capabilities.

Pros & Cons

Pros Cons
Very beginner-friendly Limited features compared to Others
Clean interface Less feature depth than others
Helpful community and resources Can feel slower at scale

How It Compares

  • Versus LaunchDarkly: Open-source alternative with similar features
  • Versus Optimizely: More developer-focused and cost-effective
  • Versus PostHog: Stronger focus on feature flags and experimentation
  • Versus proprietary tools: No vendor lock-in with open-source option
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Bullet Point Features

  • Feature flag management and targeting
  • A/B testing and experimentation
  • Statistical analysis and result reporting
  • Self-hosted and cloud options
  • Data warehouse integrations
  • Progressive delivery capabilities
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Frequently Asked Questions

Find quick answers about this tool’s features, usage ,Compares, and support to get started with confidence.

What is the primary purpose of GrowthBook?
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GrowthBook is an analytics platform designed specifically for product‑experimentation and experiment tracking in product‑led companies. It enables product teams to capture, store, and visualise user interaction data (clicks, clicks‑through, feature usage) across the full experiment lifecycle, making it easy to derive insights about experiment impact without having to write custom analytics code.

How does GrowthBook collect and process data?
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GrowthBook integrates with experiment management tools such as LookBoth – i.e., the experiment‑management platform that triggers experiments. Data is captured automatically on the client side via JavaScript injection, then sent to the Growthbook analytics engine where it is processed into structured experiment events (e.g., click → event → event trigger). The engine normalises data across experiments, so each event can be compared in an aggregated‑timeline view.

How does GrowthBook integrate with existing experiment management tools?
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The integration works via a lightweight JavaScript SDK that can be added to any web or mobile application without changing existing experiment management code. The SDK pushes event data to the Growthbar a via a simple API endpoint; the data is then indexed and made available for aggregation, analysis, and visualisation. Growthbook also provides native connectors for common experiment‑management tools such as Experiment.com, Optimizely, and A/B testing platforms.

What security and privacy controls does Growthbook provide?
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All data is encrypted in‑flight and at rest, and the service complies with GDPR, HIPAA‑type best practices, and SOC 2 Type 2 standards. Role‑based access control (RBAC) allows administrators to define granular permissions, ensuring that only authorized team members can view or modify experiment data. Additionally, data can be isolated per‑team project, preventing cross‑project contamination.

How does Growthbook support collaboration and reporting?
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Experiments can be shared as editable templates, exported as JSON or JSON‑series events, and exported to CSV or PDF for publishing. The platform provides an events‑log and a shared events board that lets multiple users comment on experiments, add notes, and schedule publishing. Growthbook also offers a reporting dashboard where teams can visualise trends, compare experiment performance over time, and export detailed performance summaries for publishing in published papers or internal reports.

GrowthBook
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Reviews from Our Users

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8.07.2021
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"Overall, I like the core features, but the mobile UI still feels a bit clunky. Hope they fix this in future updates."

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Tom W.
Marketing Manager
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06/10/2025
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"Their support team actually listens to feedback! I’ve seen new features added within weeks. That’s impressive.''

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Alex Carter
Freelancer
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03/09/2025
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"Some advanced options take a bit of time to understand, but once you get the hang of it, it’s incredibly powerful."

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Ryan Blake
SaaS Consultant
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12/08/2025
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"I’ve tried several similar tools, but this one stands out for its clean interface and automation features. Totally worth the subscription."

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Sarah Mitchell
GrowthWave Agency