PostHog — An open-source (MIT core) product analytics platform bundling event tracking, session replay, feature flags, and error tracking, free up to 1M analytics events per month with usage-based pricing beyond that.
By Noahlast updated pricing verified
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PostHog in 20 seconds
Best for: Product and engineering teams wanting analytics, replay, feature flags, and error tracking in one platform.
Pricing: Free up to 1M events/month; usage-based pricing beyond that starting at $0.00005 per event.
- PostHog's core is MIT-licensed and open source on GitHub.
- PostHog's free tier includes 1M analytics events and 5,000 session replays per month with no credit card required.
- PostHog bundles analytics, session replay, feature flags, error tracking, surveys, and a data warehouse in one platform.
- PostHog offers US or EU cloud hosting, or self-hosting.
Limitations: Usage-based pricing across multiple products makes total cost harder to predict than flat per-seat pricing.; Some enterprise features are gated behind a separate proprietary license, not the open-source core.; Self-hosting at scale requires more operational overhead than the managed cloud.
Top alternatives: Mixpanel, Amplitude, Google Analytics — full list
What is PostHog?
PostHog is an open-source product analytics platform: it combines event-based analytics, session replay, feature flags, A/B testing, error tracking, surveys, and a data warehouse in a single tool rather than requiring separate point solutions.
PostHog's core codebase is MIT-licensed and available on GitHub, with a posthog-foss repository offered for teams that want strictly open-source code without any proprietary ('ee') features; the ee directory carries a separate license for enterprise-only capabilities. Most customers use PostHog's managed cloud (choosing a US or EU region), which prices usage per product independently — analytics events, session replays, feature flag requests, and data warehouse rows each have their own volume-based rate that decreases at higher usage tiers. The free tier (1M events, 5K session replays, and more per month, no credit card required) is generous enough for early-stage products to run entirely on it before usage-based billing kicks in.
PostHog is a product analytics platform bundling web/product analytics, session replay, feature flags and A/B testing, error tracking, surveys, and a data warehouse into one tool, with its core distributed under the MIT license and source on GitHub (an 'ee' directory carries a separate proprietary license for a subset of features). The Free plan requires no credit card and includes 1M analytics events, 5,000 session replays, and 1M feature flag requests per month; the Pay-as-you-go plan bills usage beyond those limits starting at $0.00005 per event, dropping to $0.000009 per event at volumes above 250 million. It targets product and engineering teams who want analytics, experimentation, and bug tracking in one platform instead of separate tools like Mixpanel, Amplitude, and Sentry, and can be self-hosted or used as managed cloud service in the US or EU.
Standout feature: One platform combining product analytics, session replay, feature flags/A-B testing, error tracking, and a data warehouse, each billed on its own usage-based rate that drops at higher volume.
Biggest weakness: Usage-based pricing across many separate products (events, replays, flags, surveys, data warehouse rows) makes total monthly cost harder to predict than a single flat per-seat price, and some enterprise features live in a separate proprietary ('ee') license rather than the fully open-source core.
Pros
- Combines analytics, session replay, feature flags, error tracking, and surveys in one platform.
- Generous free tier: 1M analytics events and 5,000 session replays per month with no credit card required.
- MIT-licensed core with source available on GitHub, plus a dedicated posthog-foss repository for strictly open-source use.
- Choice of US or EU cloud region, or self-hosting.
Cons
- Usage-based pricing spans multiple products independently, making total monthly cost harder to forecast than flat per-seat pricing.
- Some enterprise features are gated behind a separate proprietary license (the 'ee' directory), not the fully open-source core.
- Self-hosting PostHog at scale requires more operational overhead than using the managed cloud.
- The breadth of bundled tools (analytics, replay, flags, surveys, data warehouse) means new users face a wider surface area to learn than a single-purpose analytics tool.
PostHog pricing
Free · verified from the vendor's pricing page
| Plan | Price | Notes |
|---|---|---|
| Free | Free | No credit card required; 1M analytics events, 5,000 session replays, 1M feature flag requests, 100K error tracking exceptions, and more per month. |
| Pay-as-you-go | Custom | Usage-based billing beyond free tier limits; analytics events from $0.00005 each (1-2M/month) down to $0.000009 each above 250M/month, with similar declining-rate pricing per product (session replay, feature flags, surveys, data warehouse). |
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