Open source alternatives to Cronitor

3 open source projects replace Cronitor, ranked by how safe each is to depend on.

87 · Healthy

Health checks for HTTP, TCP, DNS and more, configured in YAML, with alerts and a status page.

Free to useApache-2.0★ 12kLast commit yesterday

83 · Healthy

Uptime monitor for HTTP, TCP, DNS and more, with status pages and many notification channels.

Free to useMIT★ 92kLast commit yesterday

69 · Stable

Cron job and background task monitoring that alerts you when expected pings stop arriving.

Free to useBSD-3-Clause★ 10kLast commit 3 days ago

87 · Healthy

83 · Healthy

69 · Stable

At a glance

Health and license are separate verdicts: a project can be well maintained and still not be open source.

Project	Health	License	Stars	Last commit
Gatus	87 · Healthy	Free to useApache-2.0	12k	yesterday
Uptime Kuma	83 · Healthy	Free to useMIT	92k	yesterday
Healthchecks	69 · Stable	Free to useBSD-3-Clause	10k	3 days ago

Cronitor is a paid monitoring & error tracking product. See all open source monitoring & error tracking tools, ranked the same way.

Scores last refreshed from GitHub on 9 October 2026. How we score.