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.

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

APM, Application Performance Monitoring System

TDengine is an open source, high-performance, cloud native time-series database optimized for Internet of Things (IoT), Connected Cars, Industrial IoT and DevOps.

Your window into the Elastic Stack

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。

Simple, open source, lightweight (< 1 KB) and privacy-friendly web analytics alternative to Google Analytics.

Daemon for easy but powerful stats aggregation

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

A high-performance observability data pipeline.

We write your reusable computer vision tools. 💜

The plugin-driven server agent for collecting & reporting metrics.

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

📊 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!

Exporter for machine metrics

🚀 10x easier, 🚀 140x lower storage cost, 🚀 high performance, 🚀 petabyte scale - Elasticsearch/Splunk/Datadog alternative for 🚀 (logs, metrics, traces, RUM, Error tracking, Session replay).

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

A declarative JavaScript library for application development using cloud services.

An all-in-one observability solution which aims to combine the advantages of Prometheus and Grafana. It manages alert rules and visualizes metrics, logs, traces in a beautiful web UI.