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An open-source alternative to Better Stack

Uptime Kuma is the one project in our catalog listed as a replacement for Better Stack. It is observability software with 93.1K GitHub stars. Below is how it measures against the questions people usually ask first.

Uptime Kuma

Observability

Self-hosted uptime monitoring with status pages and alerts.

Uptime Kuma replaces a paid uptime service with a small application you run yourself. It is quick to set up with Docker, watches many kinds of endpoints, and tells your team and your customers when something is down.

  • Monitor HTTP(S), keywords, JSON, TCP, ping, DNS, WebSocket and Docker containers.
  • Get alerts through Telegram, Discord, Slack, email and 90+ other services.
  • Publish multiple status pages and map them to your own domains.

What people use it for

Know when a client site goes down

Add HTTP(S) or keyword monitors for each site, check them every 20 seconds, and get notified in Slack, Telegram or email the moment one fails.

Publish a public status page

Create a status page for your product, map it to your own domain, and let customers see current uptime without contacting support.

Watch servers and containers

Monitor ports, ping, DNS records and Docker containers alongside your websites, with certificate details and ping charts for each check.

93.1K starsMITJavaScriptLatest release 5 days agoWebsite ↗Full profile →

Fact checklist

The same questions the pages with more alternatives let you sort by, answered for Uptime Kuma.

  • Permissive licence (MIT, Apache, BSD)Licence: MIT (permissive)
  • Open-source licence (copyleft or permissive)Licence: MIT (permissive)
  • Released in the last 90 daysLatest GitHub release Oct 26, 2026 (5 days ago)
  • Does not meet: Gaining stars this weekNot enough star history yet to tell
  • Written in JavaScriptMain language on GitHub
  • Recommended in a stackIn Indie software founder, Software dev shop, IT service provider

Data from GitHub and our catalog. Every listing is hand-approved. List prices are what the vendor publishes, not a quote, and self-hosting has its own running costs.