Monitoring en observability

Distributed, RESTful search and analytics engine.

Highly customizable dashboard that puts all your feeds in one place.

Like Prometheus, but for logs.

The Prometheus monitoring system and time series database.

Photovoltaic dashboard that displays energy production and consumption with cost and savings calculations.

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

The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.

Stay up-to-date with web-site content changes.

Lightweight server monitoring with historical data, docker stats, and alerts.

Intel® Performance Counter Monitor (Intel® PCM)

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

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

A fancy self-hosted monitoring tool

APM, Application Performance Monitoring System

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

CNCF Jaeger, a Distributed Tracing Platform

Grafana Tempo is an open source, easy-to-use and high-scale distributed tracing backend. Tempo is cost-efficient, requiring only object storage to operate, and is deeply integrated with Grafana, Prometheus, and Loki. Tempo can be used with any of the open source tracing protocols, including Jaeger, Zipkin, and OpenTelemetry.

Build agents that monitor and act on your behalf.

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

Fluentd: Unified Logging Layer (project under CNCF)

Grafana Mimir provides horizontally scalable, highly available, multi-tenant, long-term storage for Prometheus.

Sub-second search & analytics engine on cloud storage

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.

⭐️ The Open-Source Polyglot Observability Warehouse: Light, Fast, Cloud Native, Drop-in Grafana LGTMP alternative :rocket: Indie All-in-One Opentelemetry, Loki, Prometheus, Tempo, Pyroscope On-Prem Alternative :star:

OpenTelemetry Go API and SDK

Checkmk - Best-in-class infrastructure & application monitoring

SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

APM, (Application Performance Management) tool for large-scale distributed systems.

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. npx codeburn

Open source APM: OpenTelemetry traces, metrics, and logs

Open source eBPF debugging and data collection tool for Kubernetes and Linux

Manage your personal book library with ease.

Cross-platform lib for process and system monitoring in Python

Blazing fast, structured, leveled logging in Go.

Zipkin is a distributed tracing system

Logstash - transport and process your logs, events, or other data

Free and open log management

OpenTelemetry Collector

OpenTelemetry community content

Exporter for machine metrics

Build your own AI SRE agents. The open source toolkit for the AI era.

:trollface: Self-hosted, lightweight server and website monitoring and O&M tool

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

Automatic CPU speed & power optimizer for Linux

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

Python package for the evaluation of odometry and SLAM

Build production-ready applications in TypeScript

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. @ https://windows-internals.com

Realtime log viewer for containers. Supports Docker, Swarm and K8s.

Yet another cross-platform graphical process/system monitor.

Real-time monitoring of IT components and services, such as networks, servers, VMs, applications and the cloud.

Evaluation and Tracking for LLM Experiments and AI Agents

Open-Source Network Management, Monitoring, ITOM, and Security Analytics

Structured, pluggable logging for Go.

Zero Allocation JSON Logger

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

Kiali project, observability for the Istio service mesh

Record the change log from models in Laravel

Lean and powerful adblocking solution for OpenWrt

Personal flight tracker and viewer.

Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, macOS and Windows operating systems.

Sends your logs to files, sockets, inboxes, databases and various web services

The open-source AIOps and alert management platform

Libre Hardware Monitor is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.

The CNCF sandbox for observability visualisation. Already supports Prometheus, Tempo, Loki and Pyroscope - more data sources to come!

DeepFlow leverages eBPF to collect signals such as performance metrics, distributed tracing, and CPU & GPU profiling. Its goal is to provide zero-code observability for complex cloud-native and AI applications, particularly those involving LLM training and inference using frameworks like PyTorch.

Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.

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

NLog - Flexible and Structured Logging for various .NET Platforms

Next-generation AI Agent Optimization Platform: Cozeloop addresses challenges in AI agent development by providing full-lifecycle management capabilities from development, debugging, and evaluation to monitoring.

Open-source observability & evaluation platform for AI agents and coding agents. Trace LLMs, tools, prompts, costs & agent workflows with OpenTelemetry.

The core of our monitoring platform with a powerful configuration language and REST API.

Gonzo is a powerful, real-time log analysis terminal UI inspired by k9s. Analyze log streams with beautiful charts, AI-powered insights, and advanced filtering – all from your terminal.

Kernel-wide Insight, Instant Observability, AutoTracing, Continuous Profiling for cloud-native and AI infrastructure using eBPF.

An environmental monitoring and regulation system

Jupiter: Governance-oriented Microservice Framework.

A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS, watchOS and visionOS

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

Network logger for Apple platforms

A simple server monitor tool.

Native Operating System and Hardware Information

An elegant debug assistant for the Laravel framework.

Aya is an eBPF library for the Rust programming language, built with a focus on developer experience and operability.

Prometheus instrumentation library for Python applications

Python logging made (stupidly) simple

Stunning status pages, batteries included!

Simple, powerful, and fast logging for Python.

AI observability platform for production LLM and agent systems.

Portable project memory across Claude Code, Codex and OpenCode, plus token accounting measured from harness transcripts. Local file I/O, no API calls, no telemetry.

High-performance log ingestion and ETL engine

Nagios Core

A blazing fast tool for building data pipelines: read, process and output events. Our community: https://t.me/file_d_community

Node.js/Typescript/Bun Production Process Manager with a built-in Load Balancer.

A Vulkan and OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more.

Application level tracing for Rust.

Log activity inside your Laravel app

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.

Dynamic dispatching library for metrics and instrumentations.

Log file navigator

An interactive NVIDIA-GPU process viewer and beyond, the one-stop solution for GPU process management.

A highly scalable real-time graphing system

Terminal-based CPU stress and monitoring utility

Fast and beautiful Log Viewer for Laravel

A Logging API for Swift

Open-source runtime AI agent security tool - monitors and controls AI agents, catching malicious tool use, prompt injection, and policy drift in real time, before the agent acts.

Log your amateur radio contacts anywhere.

Kruize analyzes your Kubernetes workload metrics and automatically generates right-sizing recommendations for CPU, memory, and GPU resources — reducing costs and improving performance without manual tuning.

NetObserv provides CNI-agnostic network observability of Kubernetes clusters.

High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.

Fast C++ logging library.

一款面向泛前端产品研发全生命周期的效率平台。

Get Alerts from your Docker Container Logs

Real-time monitoring, slowlog analysis, and audit trails for Valkey and Redis

μ/log is a micro-logging library that logs events and data, not words!

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

🚨 Collection of Prometheus alerting rules

The goal of the open source Monocle project is to help GenAI developers trace their applications. Hosted in incubation as a Sandbox project in LF AI & Data.

sysdig is a simple tool with deep system visibility for exploration and troubleshooting, with native support for containers.

Measure energy consumption and carbon emissions of software - Timelines, git-integration, Comparions, Dashboards and Optimizations included

Lightweight network IP scanner written in Go. With notifications, history, export to Grafana

SIMD-accelerated distances, dot products, matrix ops, geospatial & geometric kernels for 16 numeric types — from 6-bit floats to 64-bit complex — across x86, Arm, RISC-V, and WASM, with bindings for Python, Rust, C, C++, Swift, JS, and Go 📐

Digging through logs is not observability. It's hope — wide events, structured errors, TypeScript-first, every runtime.

Security Onion is a free and open platform for threat hunting, enterprise security monitoring, and log management. It includes our own interfaces for alerting, dashboards, hunting, PCAP, detections, and case management. It also includes other tools such as osquery, CyberChef, Elasticsearch, Logstash, Kibana, Suricata, and Zeek.

The Swiss Army knife for 802.11, BLE, HID, CAN-bus, IPv4 and IPv6 networks reconnaissance and MITM attacks.

Daemon to ban hosts that cause multiple authentication errors

Mermin is a Kubernetes-native network observability tool that uses eBPF exports OpenTelemetry Flow Traces, to provide deep visibility into your cluster’s network communications with zero application changes required.

Collect and aggregate Telemetry events over time

Main Sigma Rule Repository

Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.

The most robust observability solution for Salesforce experts. Built 100% natively on the platform, and designed to work seamlessly with Apex, Lightning Components, Flow, OmniStudio, and integrations.

:satellite: Lightweight GPS Logging Application For Android.

📊 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!

Fast persistent recoverable log and key-value store + cache, in C# and C++.

A new kind of Progress Bar, with real-time throughput, ETA, and very cool animations!

Clockwork - php dev tools in your browser - server-side component

poor man’s ruptime

Real-time monitor and web admin for Celery distributed task queue

Docker hosts and containers monitoring with Prometheus, Grafana, cAdvisor, NodeExporter and AlertManager

The Network UPS Tools repository. UPS management protocol Informational RFC 9271 published by IETF at https://www.rfc-editor.org/info/rfc9271 Please star NUT on GitHub, this helps with sponsorships!

Orb is a dynamic network observability platform with agent fleet orchestration and data pipelines with OpenTelemetry

GPU & Accelerator process monitoring for AMD, Apple, Huawei, Intel, NVIDIA and Qualcomm

💪🏻 Blazing-fast system monitoring for your desktop (built with Rust, Tauri & Svelte)

Community-based GPL-licensed network monitoring system

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

🚦 Microservices Status Page. Monitors a distributed infrastructure and sends alerts (Slack, SMS, etc.).

Listenarr automates audiobook collection management similar to Sonarr or Radarr, but for audiobooks. It can search, download, and organize your library automatically using metadata from Audible and other sources.

Risk-First Software Development

Enterprise AI bastion host for secure AI API and MCP access, with unified proxying, RBAC, audit logs, rate limiting, and cost tracking across OpenAI, Anthropic, Gemini, and self-hosted LLMs.

Never use print for debugging again

A remote monitoring & management tool, built with Django, Vue and Go.

Provide eBPF-based cloud native monitoring platform, which aim to achieve efficient triage of issues

A Suricata based NDR distribution

A tiny JavaScript debugging utility modelled after Node.js core's debugging technique. Works in Node.js and web browsers

Real-time metrics for nginx server

LinDB is a scalable, high performance, high availability distributed time series database.

【免费社区版】【企业版】Webfunny是一款集全链路监控和用户行为分析（埋点）系统于一体的大数据分析系统，我们致力于解决线上的疑难杂症和精细化分析业务数据；监控系统面向技术、埋点系统面向业务，两者配合使用，相得益彰。

📊 A simple command-line utility for querying and monitoring GPU status

extract internal monitoring data from application logs for collection in a timeseries database

An agent component for the Java system

System monitoring dashboard for terminal

Daemon for easy but powerful stats aggregation

使用注解优雅记录系统日志，操作日志，后端埋点等，支持SpEL表达式，自定义上下文，自定义函数，实体类DIFF等其他高阶处理。Elegantly record system logs, operation logs, backend tracking events, and more using annotations, with support for SpEL expressions, custom contexts, custom functions, entity diffs, and other advanced features.

:nut_and_bolt: PoShLog is PowerShell cross-platform logging module. It allows you to log structured event data into console, file and much more places easily. It's built upon great C# logging library Serilog - https://serilog.net/

OpenTelemetry command-line tool for sending events from shell scripts & similar environments

A network event stream processing system, in Clojure.

Unified monitoring wallboard — Light, ergonomic and reliable monitoring for anything.

Linux tool to show progress for cp, mv, dd, ... (formerly known as cv)

OpenMessaging Runtime Interface for Java

The all-in-one developer dashboard with features for server management using docker, error logging, project management, Discord app builder and game server remote access.

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。

Convenient & secure logging during development & release in Swift 4 & 5

Laravel Stats Tracker

The system statistics collection daemon. Please send Pull Requests here!

Dynamic Motd (Message of the Day)

🖥️ macOS status monitoring app written in SwiftUI.

Linux System Optimizer and Monitoring - https://oguzhaninan.github.io/Stacer-Web

Status Page for monitoring your websites and applications with beautiful graphs, analytics, and plugins. Run on any type of environment.

The Ultimate Starter Kit plugin to speed up development of Unreal Engine games

Energy monitor with dashboard/metrics collector based on ESP32 controller and PeaceFair PZEM-004T/PZEM-004Tv30 Power Meter

Top-like interface for container metrics

A beautiful web dashboard for Linux

Sidekick is no longer in service

KubeReport is an open-source tool that generates detailed Kubernetes cluster reports in PDF and CSV formats, providing insights into resource utilization, workload status, and cluster health for easier auditing and troubleshooting.

Loggie is a lightweight, high-performance, cloud-native log collection agent and aggregator based on Golang.

Python module to read status and energy monitoring data from Tuya based WiFi smart devices. This includes state (on/off), current (mA), voltage (V), and power (wattage).