Honest comparison
The open-source product analytics suite.
PostHog bundles product analytics, feature flags, A/B testing, and session replay into one broad platform. Webrec takes the opposite approach: replay is the core product, not one module among many, so the replay, heatmap, and debugging experience gets the full attention.
Feature availability reflects publicly documented capabilities as of August 2026 and may change. Corrections are welcome at [email protected].
Bottom line: Both products are open source and self-hostable, which is rare in this space. Choose PostHog when feature flags and experimentation matter as much as analytics. Choose Webrec when session replay is the job to be done and you want it done deeply, with UK data residency on the hosted plan.
Looking at other tools? See the full comparison of Webrec with FullStory, Hotjar, and LogRocket.
The best way to compare is to try it. Start with 100 free sessions a month. No credit card, no sales call.