Tagged: session-replay

PostHog is an all-in-one open-source developer platform for product engineers, combining product analytics, session replay, feature flags, A/B testing, surveys, error tracking, and a data warehouse in a single product. Founded in January 2020 by James Hawkins and Tim Glaser after six pivots, PostHog achieved product-market fit by solving a critical pain point: companies wanted to understand user behavior but couldn't share data with third-party tools due to privacy concerns. Their open-source, self-hostable approach attracted 190,000+ teams, 30,500+ GitHub stars, and $182M in total funding, reaching a $1.4B valuation (unicorn status) in September 2025. PostHog operates as a fully remote, radically transparent, engineering-led company and is now expanding beyond analytics into AI-powered developer automation tools.