PostHog

Open-source product analytics

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About

Overview

PostHog is an open-source, all-in-one product analytics platform. It combines event tracking, session recording, feature flags, and A/B testing into a single tool, making it highly popular among developers building modern SaaS applications.

Pricing & Free Tier

Free Tier: Yes. Extremely generous: 1 million events/month and 5,000 session recordings.
Pay-as-you-go: Billed based on usage after the free tier is exhausted.
Self-Hosted: Free open-source version available.

How to Use

  1. Create an account at posthog.com or self-host it.
  2. Install the PostHog snippet or SDK in your app.
  3. Enable autocapture to automatically track clicks and pageviews.
  4. Set up funnels and session recordings in the dashboard.

Important Notes

  • Features: It replaces multiple tools (Mixpanel, Hotjar, LaunchDarkly), which reduces complexity.
  • Data Volume: Because it tracks everything by default, event volume can spike quickly, leading to unexpected costs if you exceed the free tier.