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Cron Builder

Build, parse, and validate cron expressions with a visual editor and next-run preview.

* * * * *

Every minute

MINHOURDOMMONDOW

Quick Presets

Minute

*

Hour

*

Day of Month

*

Month

*

Day of Week

*

Next 5 Runs

1.Mon, Apr 27, 202609:56 AM
2.Mon, Apr 27, 202609:57 AM
3.Mon, Apr 27, 202609:58 AM
4.Mon, Apr 27, 202609:59 AM
5.Mon, Apr 27, 202610:00 AM

Cron Syntax

* — any value5,10,15 — specific values1-5 — range*/15 — every 15 units0 9 * * 1-5 — weekdays at 9 AM0 0 1 * * — 1st of month

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About Cron Builder

Build, parse, and validate cron expressions with a visual editor and next-run preview. RAW's Cron Builder helps you create cron schedules without memorizing the syntax. See upcoming execution times, validate expressions, and understand complex schedules at a glance.

How to use

  1. 1Use the visual dropdowns to set minute, hour, day, month, and weekday.
  2. 2Or type a cron expression directly to parse and visualize it.
  3. 3Preview the next scheduled run times to verify your schedule.
  4. 4Copy the cron expression for use in crontab, CI/CD, or schedulers.

Frequently Asked Questions

What cron format is used?
RAW uses the standard 5-field cron format: minute, hour, day of month, month, and day of week. This is compatible with crontab, GitHub Actions, AWS CloudWatch, and most scheduling systems.
Can I see when the cron job will run next?
Yes. The tool shows the next several scheduled execution times based on your cron expression, so you can verify the schedule is correct before deploying.
What do special characters mean?
Common cron characters: * (every), , (list, e.g., 1,3,5), - (range, e.g., 1-5), / (step, e.g., */15 for every 15 minutes). The visual editor helps you build these without memorizing syntax.