Best Open Source Observability & Monitoring Projects

Uptime Kuma

A self-hosted monitoring tool like Uptime Robot.

Sentry

Developer-first error tracking and performance monitoring.

SigNoz

An open-source observability platform alternative to DataDog.

ZincSearch

A lightweight alternative to Elasticsearch that requires minimal resources.

VictoriaMetrics

Fast, cost-effective and scalable time-series database and monitoring solution.

Quickwit

A cloud-native search engine that keeps logs and traces cheap by indexing straight onto object storage.

Statping

Status page and monitoring server for any project

Cabot

Self-hosted infrastructure monitoring with PagerDuty-style alerts

Open-source status page system built with Vue and Nuxt

Logflare

Centralized structured logging with your own BigQuery backend

Squzy

High-performance monitoring, incident and alerting system in Go

Distributed uptime monitoring in a single Go binary