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.

The Prometheus monitoring system and time series database.

We write your reusable computer vision tools. 💜

Scalable datastore for metrics, events, and real-time analytics

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios

APM, Application Performance Monitoring System

Simple, open source, lightweight and privacy-friendly web analytics alternative to Google Analytics.

A high-performance observability data pipeline.

Your window into all of your data

DNS-Blocklists: For a better internet - keep the internet clean!

CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.

Daemon for easy but powerful stats aggregation

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.

📊 An infographics generator with 30+ plugins and 300+ options to display stats about your GitHub account and render them as SVG, Markdown, PDF or JSON!

An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.

Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.

Exporter for machine metrics

Nightingale is to monitoring and alerting what Grafana is to visualization.

Resilience4j is a fault tolerance library designed for Java8 and functional programming

A declarative JavaScript library for application development using cloud services.

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

Fathom Lite. Simple, privacy-focused website analytics. Built with Golang & Preact.

:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on.

Fast and Lightweight Logs, Metrics and Traces processor for Linux, BSD, OSX and Windows

Coroot is an open-source observability and APM tool with AI-powered Root Cause Analysis. It combines metrics, logs, traces, continuous profiling, and SLO-based alerting with predefined dashboards and inspections.

An AI-powered next-generation open source real-time observability system.

Open-source observability for your GenAI or LLM application, based on OpenTelemetry