Analytics and monitoring

PostHog alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

PostHog/posthog37,541licence unclearFull product analytics platform with session replay, feature flags, experiments, and dashboards.Open on GitHub openreplay/openreplay12,448licence unclearSelf‑hosted session replay and product analytics platform for reproducing issues and analyzing user behavior.Open on GitHub

What you give up either way

Session replay recordings and replay UX
Managed warehouse features and 120+ source/destination connectors
Usage-based billing, SLA'd support, and enterprise features (RBAC, dedicated proxies)
AI features (PostHog AI, AI Observability, Replay Vision) and built-in agent automation
Scale and operational reliability without SRE investment

An open-source project doing the core job proves a replacement is possible. It does not prove it matches PostHog, and it does not prove anyone has run it for a month. How we decide.