Best Self-Hosted Monitoring & Observability Tools in 2026

Open source tools for tracking uptime, performance, and system health of applications and infrastructure.

The top-rated pick is Uptime Kuma with 84,584 GitHub stars.

6 self-hosted monitoring & observability tools — ranked by GitHub stars. Browse all

Uptime Kuma

Self-hosted uptime monitoring tool with a polished UI, 90+ notification integrations, and built-in public status pages.

Alternative to:

UptimeRobot

SigNoz

Open-source observability platform with logs, traces, and metrics — an alternative to Datadog and New Relic.

Alternative to:

Datadog

Beszel

Lightweight self-hosted server monitoring hub with historical data, Docker stats, and configurable alerts.

Alternative to:

Datadog

Healthchecks

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

Alternative to:

Pingdom

OpenStatus

Open-source uptime monitoring and status page platform with synthetic checks from 28 global regions and multi-channel alerting.

Alternative to:

Pingdom

Lunalytics

Lunalytics is an open-source, self-hosted monitoring tool built with Node.js and React that supports HTTP(S), TCP, ping, Docker, and more. It offers customizable dashboards, status pages, incident management, multi-user access control, and integrations with popular notification services, making it a modern, developer-friendly solution for monitoring uptime and system health.

Alternative to:

UptimeRobot

Why self-host?

Self-hosting puts you in control. You own your data, avoid vendor lock-in, and eliminate recurring subscription costs. For teams handling sensitive data or operating under strict compliance requirements, running your own infrastructure is often the only viable option.

Want to compare all open source options including cloud-hosted ones? See the best open source monitoring & observability tools →