PostHog
Leading#5 in Open sourcemedium confidence
Open-source product analytics (37k★) — event data, funnels, session replay, and SQL when your analysis is about how users behave in a product.Our read
Why it ranks #5
The existing GitHub source records roughly 37k stars, giving PostHog one of the largest open-source adoption signals for product-focused behavioral analysis.Here is the catch
Breadth makes the interface and configuration complex
High event volume can create significant hosting or cloud cost
Self-hosting the full stack is operationally demanding
Does this well
Combines several product-data tools in one platform
Generous cloud allowances and a self-host option lower adoption friction
Reviewers value rapid instrumentation and active product development
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
Event and product analyticsSession replayFeature flags and experimentsSQL querying over product data
Sources we read
Quick facts
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