The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.
Umami is a privacy-first web and product analytics platform. Traffic, campaigns, behavior, conversions, and revenue in one place. No cookies, no surveillance, self-hosted or in the cloud.
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.
Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
🐸 Rybbit - open-source and privacy-friendly alternative to Google Analytics that is 10x more intuitive.
Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.
🔥 A well-tested feature-rich modular Firebase implementation for React Native. Supports both iOS & Android platforms for all Firebase services.
A data visualization and analytics component, especially well-suited for large and/or streaming datasets.
Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
📈 A small, fast chart for time series, lines, areas, ohlc & bars
UAParser.js: The Essential Web Development Tool for User-Agent Detection. Detect Browsers, OS, Devices, Bots, Apps, AI Crawlers, and more. Run in Browser or Node
A declarative JavaScript library for application development using cloud services.
Open Source Feature Flags, Experimentation, and Product Analytics
Business intelligence as code: build fast, interactive data visualizations in SQL and markdown
Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to IoT and connected environments.
Open-Source Agent Observability & Evals for AI Platform teams. Trace, test, route and govern every agent & coding assistant in the company.
Self-hosted, Node.js based analytics tool for those who care about privacy.
Open-source reporting platform to build and share live dashboards from APIs, SQL and NoSQL databases, with powerful AI assistant, scheduling, and embeddable charts 📈📊
Deprecated in favour of Video.js 10; security fixes only until January 2028. UI components and hooks for building video and audio players on the web.
Modern, privacy-friendly, and detailed web analytics that works without cookies or JS.
Lightweight analytics abstraction layer for tracking page views, custom events, & identifying visitors