Alertmanager vs Uptime Kuma

A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureAlertmanagerUptime Kuma
CategoryMonitoring & StatusMonitoring & Status
LicenseApache-2.0MIT
LanguageGoJavaScript
Setup difficultyMediumEasy
Min. RAM64 MB256 MB
Deploymentdocker, kubernetes, binarydocker
GitHub stars★ 8,572★ 89,960
First released20152021
ReplacesPagerDuty, OpsgeniePingdom, UptimeRobot

Why pick each one

Choose Alertmanager if…

  • Powerful routing logic
  • Standard in the Prometheus stack
Alertmanager details

Choose Uptime Kuma if…

  • Very easy to use
  • Great notifications
  • Lightweight
Uptime Kuma details

Frequently asked questions

Is Alertmanager or Uptime Kuma better?

Uptime Kuma is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Alertmanager if its specific feature set fits your needs better.

Are Alertmanager and Uptime Kuma free and open-source?

Yes. Alertmanager is licensed under Apache-2.0 and Uptime Kuma under MIT. Both can be self-hosted at no software cost.

Can I run Alertmanager and Uptime Kuma with Docker?

Alertmanager: yes. Uptime Kuma: yes.

Related comparisons