Cron Expression Explainer
Paste a 5-field cron expression to get a plain-English description of when it runs and a list of the next five fire times. Parsed in your browser.
- Runs entirely in your browser
- No sign-up, no watermark
- Free and unlimited
🔒 Your file stays on your device
How to use Cron Expression Explainer
- 1
Open Cron Expression Explainer and paste or type your text into the input box.
- 2
Adjust any options to match what you need.
- 3
The result updates instantly below — copy it with one click.
What you get
- Plain-English description
- Next 5 run times
- Handles *, */n, ranges and lists
What happens to your files
This tool runs entirely in your browser. The file you choose is read into memory, processed on your device, and offered back as a download. Nothing is uploaded and nothing is kept once you leave the page.
There is no account, no email, no watermark and no daily limit. Come back whenever you need it.
Frequently asked questions
- Which cron dialect is supported?
- Standard 5-field cron: minute, hour, day-of-month, month, day-of-week. Names (JAN, MON) and non-standard extras like @reboot or seconds fields are not parsed.
- How are day-of-month and day-of-week combined?
- Following Vixie cron: if both are restricted the schedule fires when either matches; if only one is restricted, only that one applies.