Open Source A/B Testing & Experimentation Apps

Open-source feature flagging, remote config, and A/B/multivariate testing platform for web, mobile, and server-side apps — self-host or use the hosted SaaS.

Open source feature flags, A/B testing, and warehouse-native experimentation that queries your existing data infrastructure—no data movement required.

A source-controlled A/B testing stack that lets teams define experiments as versioned YAML/JS, deliver them with a sub-5KB script, and analyze results through Snowplow events and RMarkdown reports — Git and CI replace the vendor dashboard.

The all-in-one open source product platform combining analytics, session replay, feature flags, error tracking, AI observability, and a built-in data warehouse in a single self-hostable stack.

The open-source feature management platform that lets you ship code to production and control who sees it — without redeploying.