PostHog

PostHog is an open-source product analytics platform that combines event analytics, session recording, feature flags, A/B testing, and surveys in one self-hostable package. Built for engineering and product teams who want to own their data, PostHog eliminates the need for multiple third-party analytics tools while giving complete control over data infrastructure.

Features include auto-capture event tracking, funnel and retention analysis, session recordings, feature flags with multivariate support, A/B experimentation framework, user surveys, data pipelines for exporting to data warehouses, SQL access to analytics data, group analytics for B2B products, and a correlation analysis engine that automatically identifies factors associated with conversion. All features are available in both cloud and self-hosted deployments.

PostHog is built for product-led engineering teams and startups that want comprehensive product analytics without vendor lock-in or data privacy concerns. Its open-source model and generous free tier (1 million events/month) make it especially attractive for startups, while self-hosting capability appeals to enterprises with strict data sovereignty requirements.