Product analytics, session replay, and feature flags in one
PostHog is an open-source product analytics platform covering event tracking, funnels, session recordings, feature flags, A/B testing, and surveys. Self-host for free or use PostHog Cloud (generous free tier: 1M events/month). The go-to choice for technical founders who want Mixpanel-level analytics without Mixpanel's pricing.
Use when
You're building a SaaS product and want to track what users actually do - funnels, drop-off points, feature adoption, and session replays.
Skip when
You need a simple page view counter rather than product analytics. Use Plausible or Google Analytics instead.
1M events/month free on cloud is enough for most early-stage products. Can be self-hosted on any server for unlimited data and full privacy control.
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