category
Open Source Monitoring & Observability Tools
Open source monitoring & observability tools
All Monitoring & Observability tools
Self-hosted uptime monitoring with a clean dashboard
Real-time global intelligence dashboard. AI-powered news aggregation, geopolitical monitoring, and infrastructure tracking in a unified situational awareness in
Real-time monitoring for systems and applications
Unified observability for metrics, logs, traces, and more
Create agents that monitor and act on your behalf. Your agents are standing by!
Real-time error tracking and performance monitoring
Open-source observability platform for cloud-native apps
Cost-effective log aggregation that indexes labels, not full text
Lightweight server monitoring with historical data, docker stats, and alerts.
eBPF-based Networking, Security, and Observability
Distributed tracing, metrics, logs, and GenAI monitoring in one
CNCF Jaeger, a Distributed Tracing Platform
Collect, transform, and route logs and metrics in one tool
Why is this running? Trace any process, port, container, or file back to what started it - CLI + TUI.
Petabyte-scale observability, without the massive bill.
Sends your logs to files, sockets, inboxes, databases and various web services
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
一款面向泛前端产品研发全生命周期的效率平台。
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
Zipkin is a distributed tracing system
📊 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!
Build production-ready applications in TypeScript
Apache Doris is a real-time analytics and hybrid search database for AI agents.
Professional status page system for transparent downtime communication
Centralize, transform, and stash your data
Realtime log viewer for containers. Supports Docker, Swarm and K8s.
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
Yet another cross-platform graphical process/system monitor.
APM, (Application Performance Management) tool for large-scale distributed systems.
Exporter for machine metrics
A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS, watchOS and visionOS
A powerful framework for faster, easier, and more efficient project development.
Self-hosted session replay with complete data control
Unify, automate, and elevate your monitoring workflow
Advanced automated status page for real-time monitoring
eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and hu
Continuous Profiling Platform. Debug performance issues down to a single line of code
A tiny JavaScript debugging utility modelled after Node.js core's debugging technique. Works in Node.js and web browsers
Cross-platform lib for process and system monitoring in Python
Build your own AI SRE agents. The open source toolkit for the AI era.
Free, local tool to track AI coding token usage and cost across 37 tools and agents (Claude Code, Cursor, Codex, Gemini and more), by model, project, and task.
Beautiful open-source monitoring for modern infrastructure
Resilience4j is a fault tolerance library designed for Java8 and functional programming
Log file navigator
AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework
Full-stack observability without the enterprise price tag
A declarative JavaScript library for application development using cloud services.
Real-time observability for modern web applications
Status page and uptime monitoring for growing teams
📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even
Full-stack observability without code changes
A debugging and profiling tool that can trace and visualize python code execution
Comprehensive monitoring and incident management platform
OpenTelemetry Collector
An AI-powered next-generation open source real-time observability system.
Cloud native networking and network security
Network logger for Apple platforms
Self-hosted TypeScript agent runtime with durable approvals and verifiable run records. Own it, approve it, audit it.
Application level tracing for Rust.
Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.
Fast persistent recoverable log and key-value store + cache, in C# and C++.
OpenTelemetry Go API and SDK
NLog - Flexible and Structured Logging for various .NET Platforms
Enterprise monitoring for networks, apps, and infrastructure
magic-trace collects and displays high-resolution traces of what a process is doing
Add-on agent to generate and expose cluster-level metrics.
A highly scalable real-time graphing system
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
Clockwork - php dev tools in your browser - server-side component
Auto-generated network diagrams that stay current
Deploy a professional status page in minutes, no coding required
⎈ Multi pod and container log tailing for Kubernetes -- Friendly fork of https://github.com/wercker/stern
An ultra-lightweight(ROM<1.6K, RAM<0.3k), high-performance C/C++ log library. | 一款超轻量级(ROM<1.6K, RAM<0.3k)、高性能的 C/C++ 日志库
Powerful observability made simple for developers
Hubble - Network, Service & Security Observability for Kubernetes using eBPF
Open source observability platform for modern applications
Main repository for Datadog Agent
🔥 Open source static (serverless) status page. Uses hyperfast Go & Hugo, minimal HTML/CSS/JS, customizable, outstanding browser support (IE8+), preloaded CMS,
Complete IT infrastructure monitoring made simple
Open source monitoring for complex IT infrastructure
Self-hosted error tracking for full control and scalability
Complete infrastructure monitoring with 25+ years of expertise
Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Gu
Monoscope lets you ingest and explore your logs, traces and metrics. We store these in S3 compatible buckets. Query in natural language via LLMs.
OpenTelemetry observability with traces, logs, and metrics
All-in-one observability with unlimited data ingestion
Web UI for Jaeger
Self-hosted uptime monitoring you own and control
Eliot: the logging system that tells you *why* it happened
Monitor, manage, and communicate service status effortlessly
AutoKuma is a utility that automates the creation of Uptime Kuma monitors based on Docker container labels. With AutoKuma, you can eliminate the need for manual
Kuvasz (pronounce as [ˈkuvɒs]) is an open-source uptime and SSL monitoring service, with multiple notification channels, status pages, IAC support via YAML, Pro
Self-hosted monitoring for Docker, Kubernetes and uptime. Single Go binary, no agent config, live alerts. Drop a container, your stack is monitored.
Self-hosted uptime monitoring that runs on your hardware, not their servers
AI-powered root cause analysis for on-call alerts, self-hosted and air-gapped
Self-hosted visual bug reporting with screenshot annotation
Complete website health monitoring and security scanning
Frequently asked questions
How many open source Monitoring & Observability tools are there?
This registry tracks 97 open source Monitoring & Observability projects, with 1,319,966 combined GitHub stars. The list is ranked by stars and refreshed nightly.
What is the most popular open source Monitoring & Observability project?
Uptime Kuma leads this category with 91,477 GitHub stars, followed by worldmonitor.
Are these Monitoring & Observability tools free?
Yes — every project listed here is open source. Some also offer paid hosted versions alongside the free self-hosted option; the licence for each project is shown on its card.