Best Open-Source Monitoring Software

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

Self-hosted open-source monitoring and alerting for DevOps teams

High-performance time-series database for real‑time analytics

Open-source APM for cloud‑native microservices

Fast, structured, leveled logging for Go applications

Self-hosted uptime and status page

Real-time global monitoring and alerting system

A system for building agents that monitor and act on your behalf

AI engineering platform for LLM evaluations and observability

Simple and easy-to-use Python logging library

Build your bug-fixing agent and resolve production alerts automatically.

The AI SRE that catches issues before you know they exist.

LLM calls that don't break

Monitoring system and time series database

Open-source observability platform for teams and AI agents

Handle Prometheus alerts with ease

Real-time system monitoring and performance troubleshooting

Error tracking and monitoring for developers

Cross‑platform real‑time system monitoring for admins and DevOps

Advanced Node.js process manager for production environments

Self‑hosted dashboard for managing AI coding agents

Fast, header-only C++ logging library for high-performance applications

Elegant, structured logging for Go applications

Fast, real‑time web log analyzer for system administrators