Cron Expression Parser
Runs in your browser — your data is never uploaded.
Paste a 5-field cron expression to get a plain-English description and a list of its next scheduled run times, computed from your current local time. Runs entirely in your browser.
0 characters · runs entirely in your browser
How to use Cron Expression Parser
- 1
Paste a 5-field cron expression, e.g. "*/15 9-17 * * 1-5".
- 2
Choose how many upcoming run times to list.
- 3
Click “Parse” to see the description and next run times.
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Frequently asked questions
What format does it expect?+
Standard 5-field cron syntax: minute, hour, day-of-month, month, and weekday, each supporting *, lists (1,15), ranges (9-17), and steps (*/15).
How does it handle day-of-month and weekday together?+
When both fields are restricted (not "*"), standard cron semantics apply: the job runs if EITHER the day-of-month OR the weekday matches, not only when both match.
What time zone are the run times in?+
Your browser’s local time zone — the same clock your device already uses. This matters if the schedule will actually run on a server in a different time zone.
Is my expression uploaded anywhere?+
No. Parsing and the next-run calculation happen entirely in your browser — nothing is sent to a server.