PostHog

Open-source product analytics, session replay, feature flags, and experiments — self-host or use the cloud.

Free

Pricing Tier

Medium

Learning Curve

1–3 weeks

Implementation

small, medium, large

Best For

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✓ Use when

Engineering-led early-stage teams that want an all-in-one platform, or regulated/data-sovereign organizations that self-host.

✗ Avoid when

Non-technical teams (configuration is code-forward) or large enterprises that need mature SSO, governance, and dedicated support (Amplitude fits better).

What is PostHog?

PostHog is an open-source all-in-one product analytics platform that bundles what traditionally required three tools: analytics (Amplitude/Mixpanel), session replay (FullStory/Hotjar), and feature flagging (LaunchDarkly). Self-hosting is free and popular with data-sovereignty-conscious teams; the managed cloud with a generous free tier has captured significant SMB share. Newer modules add error tracking and a data warehouse. Best for early-stage engineering-led teams.

Key features

✓Product analytics (funnels, retention, paths)

✓Session replay

✓Feature flags and experiments

✓Surveys

✓Error tracking

✓Self-hostable open-source

Integrations

SegmentSlackSnowflakeBigQueryVercel

💰 Real-world pricing

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