Monitoring
Observability
Metrics, traces, logs, dashboards, and application observability platforms.
Open-Source Rankings
Ordered by GitHub stars first, then ToolVitals score to break ties between similarly adopted projects.
| # | Tool | Health | Shipping | Stars | Score | Status |
|---|---|---|---|---|---|---|
| 01 | Netdata The fastest path to AI-powered full stack observability, even for lean teams. | 88 | 72 | 78.6k | 81 | Active |
| 02 | Prometheus The Prometheus monitoring system and time series database. | 92 | 88 | 63.8k | 90 | Active |
| 03 | WorldMonitor Real-time global intelligence dashboard. AI-powered news aggregation, geopolitical monitoring, and infrastructure tracking in a unified situational awareness interface | 91 | 91 | 52.9k | 91 | Active |
| 04 | RuView π RuView: WiFi DensePose turns commodity WiFi signals into real-time human pose estimation, vital sign monitoring, and presence detection — all without a single pixel of video. | 95 | 100 | 50.5k | 97 | Active |
| 05 | Sentry Developer-first error tracking and performance monitoring | 97 | 88 | 43.7k | 93 | Active |
| 06 | Glances Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems. | 87 | 72 | 32.4k | 80 | Active |
| 07 | changedetection.io Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan! | 95 | 100 | 31.3k | 97 | Active |
| 08 | SigNoz 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 | 100 | 100 | 26.7k | 100 | Active |
| 09 | osquery SQL powered operating system instrumentation, monitoring, and analytics. | 84 | 56 | 23.2k | 71 | Active |
| 10 | Beszel Lightweight server monitoring with historical data, docker stats, and alerts. | 87 | 72 | 21.4k | 80 | Active |
| 11 | OpenObserve 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. | 100 | 100 | 18.6k | 100 | Active |
| 12 | Upptime ⬆️ GitHub Actions uptime monitor & status page by @AnandChowdhary | 81 | 0 | 17k | 45 | Warning |
| 13 | VictoriaMetrics VictoriaMetrics: fast, cost-effective monitoring solution and time series database | 100 | 100 | 16.9k | 100 | Active |
| 14 | RagaAI Catalyst Python SDK for Agent AI Observability, Monitoring and Evaluation Framework. Includes features like agent, llm and tools tracing, debugging multi-agentic system, self-hosted dashboard and advanced analytics with timeline and execution graph view | 48 | 0 | 16.1k | 26 | Critical |
| 15 | Cachet 🚦 Cachet, the open-source, self-hosted status page system. | 64 | 0 | 15k | 35 | Warning |
| 16 | Nightingale Nightingale is to monitoring and alerting what Grafana is to visualization. | 81 | 0 | 13k | 45 | Warning |
| 17 | Keep The open-source AIOps and alert management platform | 84 | 62 | 11.7k | 74 | Active |
| 18 | Pyroscope Continuous Profiling Platform. Debug performance issues down to a single line of code | 90 | 100 | 11.4k | 94 | Active |
| 19 | Quickwit Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo. | 88 | 72 | 11.1k | 81 | Active |
| 20 | Gatus Automated developer-oriented status page with alerting and incident support | 84 | 38 | 10.8k | 63 | Warning |
| 21 | Checkmate Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Don't be shy, join here: https://discord.com/invite/NAb6H3UTjK :) | 85 | 72 | 9.7k | 79 | Active |
| 22 | HyperDX Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry. | 92 | 100 | 9.5k | 96 | Active |
| 23 | highlight.io highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more. | 74 | 0 | 9.2k | 41 | Warning |
| 24 | OpenStatus 🫖 Status page with uptime monitoring & API monitoring as code 🫖 | 79 | 0 | 8.6k | 43 | Warning |
| 25 | HertzBeat An AI-powered next-generation open source real-time observability system. | 82 | 38 | 7.2k | 62 | Warning |
| 26 | OpenLLMetry Open-source observability for your GenAI or LLM application, based on OpenTelemetry | 97 | 100 | 7k | 98 | Active |
| 27 | WatchYourLAN Lightweight network IP scanner written in Go. With notifications, history, export to Grafana | 36 | 0 | 6.9k | 20 | Critical |
| 28 | OneUptime Complete open-source monitoring and observability platform. | 97 | 100 | 6.9k | 98 | Active |
| 29 | Pulse Real-time monitoring for Proxmox, Docker, and Kubernetes with AI-powered insights, smart alerts, and a beautiful unified dashboard | 91 | 100 | 5.5k | 95 | Active |
| 30 | sitespeed.io sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments. | 72 | 62 | 5k | 68 | Warning |
| 31 | Kener Stunning status pages, batteries included! | 80 | 100 | 4.9k | 89 | Active |
| 32 | Scanopy Network diagrams that update themselves | 92 | 100 | 4.8k | 96 | Active |
| 33 | Uptrace Open source APM: OpenTelemetry traces, metrics, and logs | 84 | 72 | 4.2k | 79 | Active |
| 34 | Claude DevTools The missing DevTools for Claude Code — inspect session logs, tool calls, token usage, subagents, and context window in a visual UI. Free, open source. | 76 | 100 | 3.2k | 87 | Active |
| 35 | Tianji Tianji: Insight into everything, Website Analytics + Uptime Monitor + Server Status. not only another GA alternatives | 91 | 100 | 3k | 95 | Active |
| 36 | Robusta Better Prometheus alerts for Kubernetes - smart grouping, AI enrichment, and automatic remediation | 91 | 100 | 3k | 95 | Active |
| 37 | CState 🔥 Open source static (serverless) status page. Uses hyperfast Go & Hugo, minimal HTML/CSS/JS, customizable, outstanding browser support (IE8+), preloaded CMS, read-only API, badges & more. | 42 | 0 | 2.9k | 23 | Critical |
| 38 | Laminar Laminar - open-source observability platform purpose-built for AI agents. YC S24. | 97 | 100 | 2.8k | 98 | Active |
| 39 | CheckCle CheckCle is a self-hosted, open-source monitoring platform for seamless, real-time full-stack systems, applications, and infrastructure. It provides real-time uptime monitoring, distributed checks, incident tracking, and alerts. All deployable anywhere. | 55 | 0 | 2.7k | 30 | Warning |
| 40 | OpenLIT Open source platform for AI Engineering: OpenTelemetry-native LLM Observability, GPU Monitoring, Guardrails, Evaluations, Prompt Management, Vault, Playground. 🚀💻 Integrates with 50+ LLM Providers, VectorDBs, Agent Frameworks and GPUs. | 92 | 100 | 2.4k | 96 | Active |
| 41 | Parseable Parseable is an observability datalake built from first principles. | 89 | 88 | 2.4k | 89 | Active |
| 42 | Checkmk Checkmk - Best-in-class infrastructure & application monitoring | 73 | 0 | 2.3k | 40 | Warning |
| 43 | Open Scouts 🔥 AI-powered web monitoring platform. Create automated scouts that search the web and send email alerts when they find what you're looking for. | 55 | 0 | 1.3k | 30 | Warning |
| 44 | LLMGateway Route, manage, and analyze your LLM requests across multiple providers with a unified API interface. | 79 | 0 | 1.2k | 43 | Warning |
| 45 | Peekaping Open Source Uptime Kuma Alternative | 70 | 56 | 1.1k | 64 | Warning |
| 46 | Performance Co-Pilot Performance Co-Pilot | 85 | 72 | 1.1k | 79 | Active |
| 47 | Percona PMM Percona Monitoring and Management: an open source database monitoring, observability and management tool | 86 | 56 | 1k | 72 | Active |
| 48 | Lunalytics 🚀 Open source monitoring tool built with Node.js | 70 | 47 | 726 | 60 | Warning |
| 49 | TraceRoot TraceRoot - open-source observability and self-healing layer for AI agents. YC S25 | 76 | 47 | 528 | 63 | Warning |
| 50 | Kuvasz Kuvasz (pronounce as [ˈkuvɒs]) is an open-source uptime and SSL monitoring service, with multiple notification channels, status pages, IAC support via YAML, Prometheus integration, a complete REST API and many more! | 87 | 72 | 513 | 80 | Active |
| 51 | Monigo MoniGo is a performance monitoring library for Go apps, offering real-time insights into service-level and function-level metrics. With an intuitive UI, it enables developers to track and optimize performance. Get your Go app's dashboard up in just 10 seconds! | 77 | 38 | 411 | 59 | Warning |
| 52 | LogTide 🛡️ Open-source, self-hosted log management. Privacy-first alternative to Datadog & ELK. Lightweight, GDPR-compliant, and deployed in minutes with Docker. | 81 | 100 | 398 | 90 | Active |
| 53 | OpenITCOCKPIT openITCOCKPIT is an Open Source system monitoring tool built for different monitoring engines like Nagios, Naemon and Prometheus. | 86 | 55 | 374 | 72 | Active |
| 54 | WireQuery Session replay and API exploration tool. | 6 | 0 | 305 | 3 | Critical |
| 55 | Maintenant Drop a container. Your stack is monitored. | 94 | 100 | 178 | 97 | Active |
| 56 | Centreon Centreon is a network, system and application monitoring tool. Centreon is the only AIOps Platform Providing Holistic Visibility to Complex IT Workflows from Cloud to Edge. | 89 | 100 | 150 | 94 | Active |
| 57 | Aurora Open-source agentic incident management and root cause analysis platform for SREs. | 89 | 100 | 150 | 94 | Active |
| 58 | NodeGet Next-generation server monitoring and management tools | 76 | 56 | 42 | 67 | Active |
Evidence Watch
Tracked tools with useful public signals but no verdict score yet.
SigLens
100x Efficient Log Management than Splunk :rocket: Reduce your observability cost by 90%
49 confidenceTraceway
The only tool you need to know what is happening and how to fix it.
60 confidenceZabbix
Real-time monitoring of IT components and services, such as networks, servers, VMs, applications and the cloud.
54 confidence