What cron format does this tool support?

It supports classic five-field cron syntax: minute, hour, day of month, month, and weekday, plus shortcuts such as @daily and @hourly.

Does this cron parser run in the browser?

Yes. Parsing, validation, schedule explanation, and next run preview are handled client-side in the browser.

Developer utility

Cron Expression Parser

Parse five-field cron schedules, explain them in plain language, and preview upcoming runs directly in your browser.

Cron expression

Format: or shortcuts like @daily.

Examples

Interpretation

What this schedule means

Cron basics

Use classic five-field syntax

The parser accepts minute, hour, day of month, month, and weekday fields. It also supports common shortcuts such as @daily, @weekly, and @hourly.

Step values

Use patterns like */15 for every 15 minutes or 0 */2 * * * for every two hours.

Named ranges

Use readable names such as MON-FRI for weekdays or JAN-MAR for the first quarter.

Specific values

Use comma-separated lists like 1,15 or 1,3,5 when a job runs on selected days.

FAQ

Cron parser questions

What cron format is supported?

Classic five-field cron syntax: minute, hour, day of month, month, and weekday.

Does parsing leave the browser?

No. Validation, explanation, and next-run preview are handled client-side.

Are seconds supported?

No. This tool intentionally focuses on portable five-field crontab expressions.