Alternatives / Cronitor
Looking for an open source Cronitor alternative? We compared 2 open source monitors by license and scope. Healthchecks watches cron jobs with a dead man's switch, and Uptime Kuma monitors websites and services with heartbeat monitors for jobs.
Written by Maxime DERAME
Last updated:
| Alternative | Best for | License |
|---|---|---|
| Uptime Kuma | Website and service monitoring plus heartbeats | MIT |
| Healthchecks | Dead man's switch for cron jobs | BSD-3-Clause |
We looked for open-source tools that alert when scheduled jobs or services stop. We verified each project's license, recent activity, stars, and self-hosting in its repository. See our methodology for the full criteria.
Healthchecks gives each job a unique URL to ping, and alerts when a ping does not arrive on time. It supports fixed periods or cron expressions, needs no agent, and can be self-hosted. It is built for periodic jobs, not general website monitoring, and the hosted free tier has 20 checks.
Uptime Kuma tracks websites, APIs, and services with status pages and 90+ notification integrations, and includes heartbeat monitors for cron jobs. It runs as one Docker container with SQLite but has no distributed probing from several global locations.
Healthchecks is BSD-3-Clause. Uptime Kuma is MIT.
Both had commits within days of this update.
Cronitor is a proprietary monitoring service priced by monitors. Open-source tools remove per-monitor limits and can be self-hosted, but you provide the hosting that has to stay up when your jobs fail.
Uptime Kuma is a self-hosted uptime monitoring tool for websites, APIs, and services, with 90+ notification integrations such as Slack, Telegram, Discord, PagerDuty, and email, status pages with custom domains, many monitor types including HTTP, TCP, DNS, Docker, and databases, maintenance windows, and two-factor authentication.
Pricing: Free and open source.
Healthchecks is a BSD-3-Clause service that monitors cron jobs and scheduled tasks using heartbeat pings, alerting you when an expected ping does not arrive. It can be self-hosted, and the hosted service has a free tier with up to 20 checks.
Pricing: Free to self-host; the hosted service has a free tier and paid plans.
| Alternative | Type | License | Self-hosted | Best for |
|---|---|---|---|---|
| Uptime Kuma | Monitoring | MIT | Yes | Broad uptime monitoring |
| Healthchecks | Job monitoring | BSD-3-Clause | Yes | Closest replacement |
Want to monitor cron jobs
Healthchecks alerts when a job's ping is late or missing.
Want one tool for jobs and websites
Uptime Kuma has heartbeat monitors and status pages.