Cron Parser
Paste a cron expression and get a plain-English explanation plus the next run times. Supports standard 5-field syntax and common shortcuts.
Processed locally in your browser — nothing is uploaded.
About Cron Parser
Cron expressions are terse and easy to get wrong. Paste one and see what it means in plain English, field by field, along with the next scheduled run times so you can sanity-check the schedule before deploying it.
Standard 5-field expressions are supported, including ranges (1-5), lists (1,15), steps (*/10), names (MON, JAN), and shortcuts like @daily and @hourly.
Common uses
- Verify a crontab entry runs when you think it does
- Understand a schedule someone else wrote
- Check how a step expression like */15 actually behaves
Example
Input
*/15 9-17 * * 1-5
Output
Every 15 minutes, between 09:00 and 17:59, Monday through Friday.
Limitations
- Next runs are computed in your local timezone; servers often run cron in UTC
- Six-field (seconds) and Quartz-specific syntax (?, L, W, #) are not supported