PostHog
Analytics & DataAll-in-one product analytics with event tracking, session replay, feature flags, A/B testing, and surveys — open-source with a generous free tier.
PostHog is an open-source product analytics platform that consolidates product analytics, session replay, feature flags, A/B testing, user surveys, and heatmaps into a single platform with autocapture that automatically tracks events without manual instrumentation. Its key differentiators are flexible deployment (cloud or self-hosted for complete data control), transparent usage-based pricing with no per-seat fees, and a generous free tier (1 million events, 5,000 session replays monthly) that 98% of customers never exceed. Developer-friendly with extensive SDK support and a built-in SQL editor, PostHog is ideal for engineering-led teams, though non-technical stakeholders may face a learning curve.
Best for
Engineering-led teams and startups who want an affordable, all-in-one product analytics platform with complete data ownership and don't mind a developer-centric interface.
Editorial profile generated February 23, 2026 · pricing & endpoint re-verified continuously (see badges above)
21.5/50
Overall Score
API Quality
8/10
GTM Relevance
13.5/20
PricingFreemium
Complexityhard
Learningmedium
Visit posthog.com →API Analysis
REST API
✓
Available
Webhooks
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GraphQL
—
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OAuth
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salesforcehubspotsegmentstripezapierslack
Pricing
freemiumFree Tier
Free up to 1M events/mo, then pay-per-event pricing
Listed pricing, as of Feb 2026 — not independently verified; confirm on the vendor's site before relying on it.
What users say
Themes from 1,053 real reviews on G2 · ★ 4.5
Users like
All-in-one platform combining analytics, session replay, feature flags, and experiments
Open-source and self-hostable with good developer experience
Easy to implement and integrate with existing tools
Users dislike
Limited documentation and learning resources
Pricing can become expensive at scale
Some features lack polish or advanced capabilities
Alternatives
Reviews
Links
FAQ
What is PostHog?
PostHog is an open-source product analytics platform that consolidates product analytics, session replay, feature flags, A/B testing, user surveys, and heatmaps into a single platform with autocapture that automatically tracks events without manual instrumentation. Its key differentiators are flexible deployment (cloud or self-hosted for complete data control), transparent usage-based pricing with no per-seat fees, and a generous free tier (1 million events, 5,000 session replays monthly) that 98% of customers never exceed. Developer-friendly with extensive SDK support and a built-in SQL editor, PostHog is ideal for engineering-led teams, though non-technical stakeholders may face a learning curve.
Is PostHog free?
Yes, PostHog offers a free tier. Free up to 1M events/mo, then pay-per-event pricing Pricing shown is as last reviewed and may change — confirm current pricing on the vendor's site.
What are PostHog alternatives?
Popular alternatives to PostHog include Amplitude, Mixpanel, Heap, LogRocket, FullStory, Matomo. Compare features, API quality, and pricing on GTM Tools.
Does PostHog have an API?
Yes, PostHog provides a REST API. API quality is rated GOOD. Documentation: https://posthog.com/docs/api.
Who is PostHog best for?
Engineering-led teams and startups who want an affordable, all-in-one product analytics platform with complete data ownership and don't mind a developer-centric interface.
How current is PostHog's data on GTM Tools?
Endpoint reachability and pricing for verified-tier tools are re-checked on a schedule — see the verification badges on this page for the latest check. The editorial profile (description, strengths and weaknesses) is last generated February 2026, and any user-review themes are pulled from G2.