Best Open Source monitoring Libraries
A curated list of the most popular GitHub repositories tagged with monitoring. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1louislam/uptime-kuma
A fancy self-hosted monitoring tool
#2netdata/netdata
The fastest path to AI-powered full stack observability, even for lean teams.
#3grafana/grafana
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.
#4prometheus/prometheus
The Prometheus monitoring system and time series database.
#5huginn/huginn
Create agents that monitor and act on your behalf. Your agents are standing by!
#6getsentry/sentry
Developer-first error tracking and performance monitoring
#7Unitech/pm2
Node.js Production Process Manager with a built-in Load Balancer.
#8glanceapp/glance
A self-hosted dashboard that puts all your feeds in one place
#9nicolargo/glances
Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems.
#10influxdata/influxdb
Scalable datastore for metrics, events, and real-time analytics
#11dgtlmoon/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!
#12SigNoz/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
#13taosdata/TDengine
High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios
#14cilium/cilium
eBPF-based Networking, Security, and Observability
#15osquery/osquery
SQL powered operating system instrumentation, monitoring, and analytics.
#16langfuse/langfuse
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
#17didi/DoKit
一款面向泛前端产品研发全生命周期的效率平台。
#18allinurl/goaccess
GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.
#19henrygd/beszel
Lightweight server monitoring hub with historical data, docker stats, and alerts.
#20dianping/cat
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。
#21bettercap/bettercap
The Swiss Army knife for 802.11, BLE, HID, CAN-bus, IPv4 and IPv6 networks reconnaissance and MITM attacks.
#22openobserve/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.
#23bcicen/ctop
Top-like interface for container metrics
#24sqshq/sampler
Tool for shell commands execution, visualization and alerting. Configured with a simple YAML file.
#25thanos-io/thanos
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
#26pinpoint-apm/pinpoint
APM, (Application Performance Management) tool for large-scale distributed systems.
#27winsiderss/systeminformer
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com
#28dastergon/awesome-sre
A curated list of Site Reliability and Production Engineering resources.
#29ClementTsang/bottom
Yet another cross-platform graphical process/system monitor.
#30ccfos/nightingale
Nightingale is to monitoring and alerting what Grafana is to visualization.
#31aksakalli/gtop
System monitoring dashboard for terminal
#32healthchecks/healthchecks
Open-source cron job and background task monitoring service, written in Python & Django
#33prometheus-operator/prometheus-operator
Prometheus Operator creates/configures/manages Prometheus clusters atop Kubernetes
#34gao-sun/eul
🖥️ macOS status monitoring app written in SwiftUI.
#35nezhahq/nezha
:trollface: Self-hosted, lightweight server and website monitoring and O&M tool
#36upgundecha/howtheysre
A curated collection of publicly available resources on how technology and tech-savvy organizations around the world practice Site Reliability Engineering (SRE)
#37hyperdxio/hyperdx
Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.
#38oguzhaninan/Stacer
Linux System Optimizer and Monitoring - https://oguzhaninan.github.io/Stacer-Web
#39highlight/highlight
highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.
#40Abdenasser/neohtop
💪🏻 Blazing-fast system monitoring for your desktop (built with Rust, Tauri & Svelte)
#41koala73/worldmonitor
Real-time global intelligence dashboard — AI-powered news aggregation, geopolitical monitoring, and infrastructure tracking in a unified situational awareness interface
#42Xfennec/progress
Linux tool to show progress for cp, mv, dd, ... (formerly known as cv)
#43traceloop/openllmetry
Open-source observability for your GenAI or LLM application, based on OpenTelemetry
#44aceberg/WatchYourLAN
Lightweight network IP scanner written in Go. With notifications, history, export to Grafana
#45open-telemetry/opentelemetry-collector
OpenTelemetry Collector
#46Maciek-roboblog/Claude-Code-Usage-Monitor
Real-time Claude Code usage monitor with predictions and warnings
#47XuehaiPan/nvitop
An interactive NVIDIA-GPU process viewer and beyond, the one-stop solution for GPU process management.
#48lebinh/ngxtop
Real-time metrics for nginx server