PostHog
Open-source product analytics + flags
Mixpanel
Event-based product analytics
PostHog is the open-source all-in-one product analytics — events, funnels, feature flags, session replay, A/B tests, even a heatmap. Mixpanel is the polished dedicated product-analytics suite with the best query UX. PostHog wins on self-host + bundled features; Mixpanel wins on polish.
Pick PostHog when you want open-source, self-host, or bundled flags + session replay.
Pick Mixpanel when you want the most polished UX and you only need analytics (not flags/replay).
| Feature | 🦔PostHog | 📈Mixpanel | Winner |
|---|---|---|---|
| Product analytics | Yes | Yes (core) | Tie |
| Session replay | Built-in | Paid add-on | A |
| Feature flags / experiments | Built-in | Separate product | A |
| Open source / self-host | Yes | No | A |
| Query UX | Good | Best-in-class | B |
| SQL / data access | Yes (HogQL) | Yes (JQL) | Tie |
| Free tier | 1M events/mo | 20M events/mo | B |
| Pricing at 10M events | ~$450 | ~$0-$ (free tier) | B |
Product analytics
TiePostHog
Yes
Mixpanel
Yes (core)
Session replay
APostHog
Built-in
Mixpanel
Paid add-on
Feature flags / experiments
APostHog
Built-in
Mixpanel
Separate product
Open source / self-host
APostHog
Yes
Mixpanel
No
Query UX
BPostHog
Good
Mixpanel
Best-in-class
SQL / data access
TiePostHog
Yes (HogQL)
Mixpanel
Yes (JQL)
Free tier
BPostHog
1M events/mo
Mixpanel
20M events/mo
Pricing at 10M events
BPostHog
~$450
Mixpanel
~$0-$ (free tier)
Best for
Best for
Swap the SDK, rename a few event property conventions (e.g., $current_url vs current_url). Historical events can be backfilled via PostHog's historical capture API or Mixpanel's import endpoint. Funnels and dashboards don't port cleanly — rebuild them. Feature flags only migrate if you move from PostHog's flags — no equivalent in vanilla Mixpanel.
PostHog is the open-source all-in-one product analytics — events, funnels, feature flags, session replay, A/B tests, even a heatmap. Mixpanel is the polished dedicated product-analytics suite with the best query UX. PostHog wins on self-host + bundled features; Mixpanel wins on polish. In short: PostHog — Open-source product analytics + flags. Mixpanel — Event-based product analytics.
Pick PostHog when you want open-source, self-host, or bundled flags + session replay.
Pick Mixpanel when you want the most polished UX and you only need analytics (not flags/replay).
Swap the SDK, rename a few event property conventions (e.g., $current_url vs current_url). Historical events can be backfilled via PostHog's historical capture API or Mixpanel's import endpoint. Funnels and dashboards don't port cleanly — rebuild them. Feature flags only migrate if you move from PostHog's flags — no equivalent in vanilla Mixpanel.
Yes. Both have MCP servers installable via MCPizy (mcpizy install posthog and mcpizy install mixpanel). They work identically across Claude Code, Claude Desktop, Cursor, Windsurf, and any other MCP-compatible client. You can install both side by side and route queries in your agent's prompt.
Amplitude is the enterprise product-analytics and CDP standard — deep segmentation, behavioral cohorts, and a mature governance story. PostHog is the open-source all-in-one — analytics + flags + replay + experiments. Amplitude wins on depth of analysis + enterprise; PostHog wins on cost + bundled features.
GA4 is free web-and-app analytics tied to the Google ecosystem (Ads, BigQuery export, Search Console). PostHog is product analytics — event-first, user-identified, with flags + replay + experiments. GA4 wins for marketing / SEO / Ads attribution. PostHog wins for product-led and engineering-first teams.
Not sure? Run both side by side — swap between them in your AI agent with a single config line.