Cron Builder
input — cron-builder
$
description — cron-builder
✓Every minute
next-runs — cron-builder
✓2026-04-28 21:57:00
2026-04-28 21:58:00
2026-04-28 21:59:00
2026-04-28 22:00:00
2026-04-28 22:01:00
## What is Cron Builder?
Cron Builder is a free online tool that helps you create and parse cron expressions visually. Enter a cron expression or use the visual builder to compose one, and instantly see a human-readable description and the next scheduled execution times.
## How to use
- Enter a cron expression directly, or use the field selectors below
- Use preset buttons for common schedules
- The description updates in real-time as you type
- Next 5 execution times are displayed automatically
## FAQ
What cron format is supported?
Standard 5-field cron format: minute (0-59), hour (0-23), day of month (1-31), month (1-12), day of week (0-6, Sunday=0).
Is my data safe?
Yes. All processing happens entirely in your browser. No data is sent to any server.
What expressions are supported?
Wildcards (*), steps (*/N), ranges (N-M), lists (N,M,O), and range with steps (N-M/S) are all supported.