Companies spend thousands of hours building internal tools for feature flagging and experimentation (A/B testing). They do this in part because they want to run these systems on their own infrastructure, using their own data, and have them deeply integrated into their code.

GrowthBook gives data, engineering, and product teams the power of a customizable platform without needing to build it themselves.

What is GrowthBook?

GrowthBook is a modern open-source platform for feature flagging and A/B testing built for data teams, engineers, and product managers. We help companies analyze experiment results and make it easier to deploy code.

Design Philosophy

• A/B testing is the best way to measure the impact of product changes
• Feature flagging is the best way to launch A/B tests
• A/B testing should sit on top of your existing data and metrics, wherever they live and however they are defined, for security, privacy and to create a single source of truth
• Trust through open source and complete data transparency. Trust is critical to leveraging your data to make better decisions, and transparency is critical to building trust.
• High performance. We are fanatical about building the fastest platform.
• Bring the cost per feature or experiment dramatically down

History

GrowthBook's open-source platform was first launched in 2021 as an experimentation platform that worked against your existing data sources. Soon after we add feature flagging, as A/B testing and feature flagging are a natural combination. We are currently the most popular open source feature flagging and experimentation platform, deployed in large enterprises and small startups and everywhere in between.

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