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Uptime KumaCheckCle
Free

Free and open source under the MIT licence.

 Free

Free and open source under the MIT license.

Windows, macOS, Linux, Web, Self-hosted Self-hosted
  • Monitors HTTP, TCP, ping, DNS, Docker containers and more
  • More than ninety notification services, including most chat apps
  • Monitors network services and server metrics
  • Tracks incidents and SSL certificate status
  • Runs from one place, so it cannot tell you about regional outages
  • NFS and other network filesystems are explicitly unsupported for its data
  • Server monitoring supports Linux; Windows support is beta
Self-hosted Self-hosted
Open source Open source
License: MIT License: MIT
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.