Open-source monitoring & observability tools. To compare with Nizlo.

Komari

Monitoring & Observability

A simple server monitor tool.

Langfuse

AI Infrastructure

Trace, evaluate, and improve AI agents with one open platform. Use production data to unde

Checkmk

Monitoring & Observability

Checkmk - Best-in-class infrastructure & application monitoring

Uptime Kuma

Monitoring & Observability

A self-hosted monitoring tool

HolmesGPT

Monitoring & Observability

SRE Agent - CNCF Sandbox Project

TraceRoot

AI Infrastructure

TraceRoot - open source self improving layer for ai agents YC S25

Beszel

Monitoring & Observability

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

Opik

AI Infrastructure

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows wit

Grafana

Monitoring & Observability

The open and composable observability and data visualization platform. Visualize metrics,

Traceway

Monitoring & Observability

The only tool you need to know what is happening and how to fix it.

Netdata

Monitoring & Observability

The fastest path to AI-powered full stack observability, even for lean teams.

Prometheus

Monitoring & Observability

The Prometheus monitoring system and time series database.

Changedetection.io

Monitoring & Observability

Best and simplest way to monitor websites for changes, change detection, website checker,

OpenObserve

Monitoring & Observability

High-performance, unified observability for the AI era. 140x lower storage cost.

Arize Phoenix

AI Infrastructure

AI Observability & Evaluation

CrewAI

AI Tools

Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative

Temps

Hosting & PaaS

AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 4

Sentry

Monitoring & Observability

Developer-first error tracking and performance monitoring

SigNoz

Monitoring & Observability

SigNoz Cloud is a one-stop observability tool built on top of OpenTelemetry. Get APM, logs

dashdot

Monitoring & Observability

A simple, modern server dashboard, primarily used by smaller private servers

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

MeshCentral

Networking & VPN

A complete web-based remote monitoring and management web site. Once setup you can install

Grafana Loki

Monitoring & Observability

Like Prometheus, but for logs.

Pulse

Monitoring & Observability

Pulse brings Proxmox, Docker, Kubernetes, TrueNAS, and vSphere into one self-hosted worksp

System Informer

Monitoring & Observability

A free, powerful, multi-purpose tool that helps you monitor system resources, debug softwa

Dozzle

Monitoring & Observability

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

Gatus

Monitoring & Observability

Create beautiful, automated status pages with advanced monitoring. Track HTTP, DNS, TCP en

Vector

Monitoring & Observability

A high-performance observability data pipeline.

Jaeger

Monitoring & Observability

CNCF Jaeger, a Distributed Tracing Platform

VictoriaMetrics

Monitoring & Observability

VictoriaMetrics: fast, cost-effective monitoring solution and time series database

Laminar

AI Infrastructure

Laminar - open-source observability platform purpose-built for AI agents. YC S24.

SkyWalking

Monitoring & Observability

APM, Application Performance Monitoring System

Kibana

Monitoring & Observability

Your window into all of your data

Nightingale

Monitoring & Observability

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

Telegraf

Monitoring & Observability

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitr

Keep

Monitoring & Observability

The open-source AIOps and alert management platform

Yet another cross-platform graphical process/system monitor.

Checkmate

Monitoring & Observability

Checkmate is an open-source, self-hosted tool designed to track and monitor server hardwar

Upptime

Monitoring & Observability

⬆️ GitHub Actions uptime monitor & status page by @AnandChowdhary

Healthchecks

Monitoring & Observability

Open-source cron job and background task monitoring service, written in Python & Django

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

Suricata

Security

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network

Thanos

Monitoring & Observability

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

Cachet

Monitoring & Observability

From startups to Fortune 500 companies, organizations worldwide trust Cachet to streamline

Logstash

Data Pipelines & ETL

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

Quickwit

Monitoring & Observability

Cloud-native OSS search engine for observability

OpenTelemetry Collector

Monitoring & Observability

OpenTelemetry Collector

Pinpoint

Monitoring & Observability

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

Zabbix

Monitoring & Observability

Real-time monitoring of IT components and services, such as networks, servers, VMs, applic

Fluentd

Monitoring & Observability

Fluentd: Unified Logging Layer (project under CNCF)

HyperDX

Monitoring & Observability

Resolve production issues, fast. An open source observability platform unifying session re

OneUptime

Monitoring & Observability

Complete open-source monitoring and observability platform.

OpenStatus

Monitoring & Observability

🫖 Status page with uptime monitoring & API monitoring as code 🫖

Grafana Alloy

Monitoring & Observability

OpenTelemetry Collector distribution with programmable pipelines

Pyroscope

Monitoring & Observability

Continuous Profiling Platform. Debug performance issues down to a single line of code

NeoHtop

Monitoring & Observability

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

Nezha

Monitoring & Observability

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

LangWatch

AI Infrastructure

The platform for LLM evaluations and AI agent testing

Sentry

Monitoring & Observability

How you can run all of Sentry on your own server, without paying anything.

Spug

CI/CD & DevOps

Spug is a lightweight agent-free automatic operation and maintenance platform designed for