PostHog
PostHog is the leading open-source platform for building better products. It combines product analytics, session recording, feature flags, A/B testing, surveys, error tracking, and logs into a single, self-hostable platform. With 37,000+ GitHub stars and a rapidly growing community, PostHog gives product teams every tool they need to understand user behaviour and ship features with confidence — without sending data to third parties.
Key Features
- Product analytics — Track events, build funnels, measure retention, and analyse user flows with SQL or visual query builder
- Session recording — Watch real user sessions to understand exactly how people interact with your product
- Feature flags — Roll out features gradually, run beta tests, and instantly kill problematic features without redeployment
- A/B testing — Run experiments with statistical significance calculations and automatic winner detection
- Surveys — Collect qualitative feedback directly from your users with in-app surveys
- Data warehouse — Import data from external sources and join it with your product analytics for deeper insights
- Error tracking — Catch, group, and debug errors with full stack traces and session context
- AI analytics — Get automated insights and anomaly detection powered by machine learning
Why Use PostHog?
PostHog replaces half a dozen separate tools — Google Analytics, Hotjar, LaunchDarkly, Amplitude, Sentry, and more — with one integrated open-source platform. Because it is self-hosted, all your user data stays on your infrastructure. The platform is designed for modern product teams: you can instrument once and get analytics, session replay, flags, and experiments from the same event pipeline.
Use Cases
- Product teams wanting an all-in-one analytics and experimentation platform
- Startups running A/B tests to optimise conversion and retention
- Engineering teams gradually rolling out features with feature flags
- Data-driven organisations needing self-serve product analytics without SQL
Platform
Linux · Docker · Kubernetes · Self-hosted · Cloud
Licence
MIT Expat (core) · Commercial licence for enterprise features