GrowthBook is an open-source platform that provides robust feature flagging and A/B testing capabilities. It allows organizations to experiment fearlessly and deliver confidently by managing feature flags and experiments together, all while maintaining full control over their data. Trusted by thousands of organizations, GrowthBook serves over 100 billion feature flag lookups per day. Features include feature flagging, A/B testing, self-hosting, lightweight SDKs, no-code website updates, and enterprise-class experimentation. GrowthBook ensures optimal user experience, privacy, and control.