Amplitude
Product analytics platform for tracking user behavior and generating data-driven insights
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
All‑in‑one analytics, feature flags, and experiments platform
PostHog delivers product and web analytics, session replay, feature flagging, A/B testing, error tracking, surveys, and data pipelines in a single self‑hostable solution with a generous free tier.
PostHog is a unified platform that gives product teams the ability to collect event‑based product analytics, monitor web traffic, replay user sessions, and run feature‑flagged experiments—all from a single interface. It supports autocapture as well as manual instrumentation, and includes built‑in error tracking, survey tools, and LLM analytics for AI‑driven applications.
Teams can start instantly with PostHog Cloud (US or EU) which provides a free tier covering up to 1 M events and 5 k recordings per month. For organizations that need full data ownership, a one‑line Docker script deploys a hobby instance on Linux (recommended 4 GB RAM). The self‑hosted version scales to roughly 100 k events monthly, after which migration to the managed cloud is recommended. SDKs are available for JavaScript, React, Next.js, Vue, mobile frameworks, and major backend languages, making integration straightforward for developers.
When teams consider PostHog, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Track user journeys and improve conversion
Identify drop‑off points with event funnels and session replays, then iterate features to boost sign‑up rates.
Roll out new UI components safely
Use feature flags and no‑code experiments to expose changes to targeted cohorts and measure impact before full release.
Monitor production errors in real time
Capture exceptions, receive alerts, and correlate with user sessions to accelerate bug resolution.
Analyze LLM usage costs and latency
Collect generation traces, latency, and token cost metrics to optimize AI‑powered features.
Yes, the free tier includes 1 M events, 5 k recordings, 1 M flag requests, 100 k exceptions, and 1 500 survey responses each month.
You can sign up for PostHog Cloud (US or EU) or self‑host using the one‑line Docker hobby script.
PostHog provides SDKs for JavaScript, React, Next.js, Vue, React Native, Android, iOS, Flutter, Python, Node, PHP, Ruby, and many others.
Built‑in data pipelines let you stream events to 25+ third‑party tools or batch export to your data warehouse.
The core repository is MIT‑licensed; additional enterprise features are in the `ee` directory under a separate license.
Project at a glance
ActiveLast synced 4 days ago
