PostHog
Open-source platform combining feature flags, experimentation, web analytics, and product analytics. Enables teams to safely rollout features with local evaluation, cohort targeting, and integrated analytics without data leaving your system.
Overview
| Category | Analytics |
| Self-Hostable | Yes |
| On-Prem | No |
| Best For | hobby, startup, growth |
| Last Verified | 2026-02-13 |
Strengths & Weaknesses
Strengths:- dx
- cost
- customization
When to Use
Best when:- integrated analytics needed
- data privacy required
- open-source preferred
- product metrics alongside flags
- dedicated flag management only
- advanced enterprise experimentation
Known Issues (10)
- [high] This library is large
- [medium] Bug report: Issue with rrweb dependency when compiled for typescript app
- [medium] Add onError handler for posthog init
- [medium] Module parse failed at ./node_modules/posthog-js/dist/module.js 10:1199
- [medium] Next.js + Sentry + PostHog integration hydration error
- [medium] Store events in queue for offline usage
- [medium] Cannot find module and when installing dependency it doesnt compile
- [medium] Type 'SentryIntegration' is not assignable to type 'Integration'
- [medium] Retries persist forever if blocked by adblocker
- [low] The posthog-js library is throwing error, when user is iddle