PostHog vs Plausible
The all-in-one product analytics platform vs the privacy-focused analytics that just tells you what matters.
PostHog
PostHog gives you analytics, session replay, feature flags, A/B testing, and surveys in one tool. If you're building a product (not a blog), PostHog replaces 4 separate tools. Plausible is perfect if you just want clean traffic analytics.
Different Tools for Different Jobs
Plausible answers: "How many people visit my site and where do they come from?"
PostHog answers: "What are my users doing, why are they churning, and what should I build next?"
They're not really competitors. But developers compare them because both are privacy-friendly analytics that aren't Google Analytics.
PostHog: The Product OS
PostHog is what happens when you combine Mixpanel, Hotjar, LaunchDarkly, and Typeform into one open-source platform.
⢠Event analytics with funnels and retention ⢠Session replay to watch real user behavior ⢠Feature flags with percentage rollouts ⢠A/B testing with statistical significance ⢠Surveys for qualitative feedback
All self-hostable. All with a generous free tier (1M events/month).
Plausible: The Anti-Analytics Analytics
Plausible's pitch is simplicity and privacy. One script tag. No cookies. GDPR-compliant by default. A single-page dashboard that shows you what matters.
⢠Page views, referrers, countries, devices ā the basics, done well ⢠No cookie banners needed ā fully privacy-compliant ⢠Lightweight script ā under 1KB vs PostHog's ~70KB ⢠Self-hostable (Community Edition)
For blogs, marketing sites, and documentation ā Plausible is all you need.
Script Size Matters
Plausible's script is under 1KB. PostHog's is ~70KB (with autocapture). If you care about page load performance (you should), that's a meaningful difference.
PostHog has a lite mode that reduces this, but it still can't match Plausible's minimalism.
Quick Comparison
| Factor | PostHog | Plausible |
|---|---|---|
| Event Tracking | Full product analytics | Page views only |
| Session Replay | Built-in | No |
| Feature Flags | Built-in | No |
| Privacy | Good (self-hostable) | Excellent (no cookies) |
| Script Size | ~70KB | <1KB |
| Free Tier | 1M events/month | No free tier ($9/mo) |
| Setup Simplicity | Moderate | One line of HTML |
| Self-hosting | Docker, complex | Docker, simple |
The Verdict
Use PostHog if: You're building a product and need to understand user behavior, run experiments, and manage feature rollouts. PostHog replaces multiple tools.
Use Plausible if: You have a blog, docs site, or marketing page and just want clean traffic data without the cookie banner dance.
Consider: Umami is another excellent privacy-focused alternative to Plausible, and it's completely free to self-host.
PostHog gives you analytics, session replay, feature flags, A/B testing, and surveys in one tool. If you're building a product (not a blog), PostHog replaces 4 separate tools. Plausible is perfect if you just want clean traffic analytics.
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