Uptime Kuma

Uptime Kuma is a self-hosted uptime monitoring tool that replaces services like UptimeRobot or Better Stack with a single Docker container you run yourself. Set up monitors for HTTP endpoints, TCP ports, DNS records, Docker containers, SSL certificate expiry, and more. When something goes down, it fires a notification to whichever channel you have configured — Slack, Discord, Telegram, PagerDuty, email, or one of 90+ other integrations.

The interface stands out for a self-hosted tool. It is clean, responsive, and clearly designed with care. Adding a monitor takes seconds, the dashboard gives an at-a-glance view of everything, and the status page feature generates a public-facing page that updates automatically — useful if you want a status page for a SaaS product without paying Better Stack’s subscription rates.

Monitor types go beyond a basic HTTP ping: heartbeat monitors for cron jobs, Kubernetes ingress checks, game server monitoring, and Docker container health are all included. Check intervals can be set as low as 20 seconds.

The practical limits are worth knowing. Uptime Kuma is a single-process Node.js application. It is not designed to run in a high-availability multi-node configuration. It stores data in SQLite by default, so backing up the data directory is your responsibility. And because it is largely maintained by a solo developer, feature velocity and bug fix timing reflect that.

For personal projects, small teams, and indie products that want uptime monitoring without a monthly bill, it covers everything necessary.

Uptime Kuma: Pros & Cons