What does */5 mean in a cron expression?

The */5 syntax means every 5 units. In the minutes field, */5 means every 5 minutes (0, 5, 10, 15, ...). In the hours field, it means every 5 hours.

Can I build cron expressions visually?

Yes. The tool includes a visual builder where you can select minute, hour, day and month values from dropdowns, and the cron expression is generated automatically.

Cron Expression Tester in Your Browser

Test and validate cron expressions without deploying them. This browser-based tool gives you instant feedback on your cron syntax, shows a plain-English description of the schedule and lists upcoming execution times.

Open Cron Visualizer

How to Test a Cron Expression

Enter a cron expression in the input field
View the human-readable description instantly
Check the next scheduled execution times
Adjust fields interactively using the visual editor

Common Use Cases

Testing GitHub Actions cron triggers before committing
Validating Kubernetes CronJob schedules
Building cron expressions for AWS EventBridge rules
Verifying scheduled task timing for database backups

Frequently Asked Questions

What does */5 mean in a cron expression?: The */5 syntax means every 5 units. In the minutes field, */5 means every 5 minutes (0, 5, 10, 15, ...). In the hours field, it means every 5 hours.
Can I build cron expressions visually?: Yes. The tool includes a visual builder where you can select minute, hour, day and month values from dropdowns, and the cron expression is generated automatically.