PostHog/posthog
🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, data warehouse, a CDP, and an AI product assistant to help debug your code, ship features faster, and keep all your usage and customer data in one stack.
What it does
PostHog is an open-source platform that bundles all the tools a product team needs to understand and improve their product — think user behavior tracking, session recordings, A/B testing, surveys, and feature rollouts — all in one place instead of stitched together from multiple vendors. It also connects to your business data from tools like Stripe or HubSpot, so teams can analyze everything about how their product is performing without switching between apps.
Why it matters for PMs
For PMs and founders, PostHog represents a direct challenge to the expensive patchwork of tools like Mixpanel, LaunchDarkly, Hotjar, and Qualtrics that most companies pay for separately — offering a single open-source alternative that keeps all customer and usage data under one roof. With over 31,000 stars and nearly 400 contributors, this is a fast-growing, battle-tested platform that signals a real market shift toward consolidated, self-hostable product intelligence stacks.
Moderate signal — worth watching
Score updated Feb 18, 2026
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