Cron Collision Detector
Compare multiple cron schedules and find the exact minutes where jobs overlap.
Schedules
One cron per line, optional label
Format: Label: * * * * * or plain cron
Timezone
Lookahead Days
Scans minute-by-minute from now.
Max Collisions
Limits the collision list output.
About This Tool
Paste multiple cron expressions, scan a future window, and surface the exact minutes where two or more schedules fire together.