Cron Schedule Heatmap

Paste a cron expression and see a 7-day by 24-hour heatmap of when it will fire. Brighter cells = more firings. Works with the standard 5-field syntax (* * * * *), steps, ranges, lists, and month / day-of-week names. Pure client-side, no upload.

Expression Now:

Every minute Every 5 min Weekday business Weekdays 9 AM Daily midnight 1st of month Sunday noon Every 2 hours

At a glance

Firing pattern (Mon–Sun × 0–23h)

Fewer More

By day of week

By hour of day

Next 10 runs (local time)