CronAlarm

Cronless offers a free online cron job service. We simulate a Linux cron job through our website and call your script at a scheduled time. Web-based or online cron jobs are used for two main reasons: First, you want to automate something you do often or infrequently so you don't forget. Second, you might have a CPU-intensive script or program to run and you want to do it when site traffic is low. Cron services aren't always available on free (and sometimes paid) web hosting services, and furthermore crontab is a real headache to set up and run correctly. If you don't have cron on your hosting account or don't want to write a crontab entry, then Cronless makes it easy to set up a cron job online. Cronless offers a premium monitoring service where we can alert you if your site or server is offline moments after it goes offline. Our site monitoring also offers uptime percentage and outage count, along with a website badge you can post to brag to your customers about your reliability.

Healthchecks.io is a simple and effective cron job monitoring tool that alerts users when their scheduled tasks, such as backups or reports, fail to run on time. Users can generate a unique ping URL for each background job, and the platform sends notifications when jobs do not ping within the configured timeframe. It supports 20 free cron job monitors and features an easy-to-use dashboard where users can name, tag, and organize their tasks. With configurable period and grace time settings, users can track tasks across various states, such as "up," "late," or "down," based on the timing of pings. Healthchecks.io also supports cron expressions, logs event history, and offers status badges for public display. Notifications are available through multiple integrations, including email, webhooks, Slack, and Discord, as well as incident management tools like PagerDuty and Opsgenie. The service is ideal for monitoring cron jobs, server processes, database backups, SSL renewals, and more.