Cron expression builder and explainer
Paste a cron expression and get a plain-English description plus the next ten run times. It parses in your browser (0 uploads, works offline).
How to use it
- Enter your input in the field above.
- The result and its explanation appear instantly.
- Copy or Download the result.
FAQ
How do I understand a cron expression for free?
Paste the cron expression and this page explains it in plain English and lists the next ten times it will fire — parsed in your browser with no upload. It understands ranges (1-5), steps (*/15), lists (1,3,5) and shortcuts like @daily.
What do the five fields mean?
In order: minute, hour, day of month, month, and day of week (Sunday is 0). A star means every value. The field reference is shown right on the page so you do not have to remember it.
Is my data uploaded?
No. Parsing and the next-run calculation happen locally and nothing is stored; it works offline.
Does it support @daily and other shortcuts?
Yes — @yearly, @monthly, @weekly, @daily and @hourly are expanded to their five-field equivalents and explained.
Limits
Standard 5-field cron. Next runs are computed in UTC. Second-level and non-standard extensions (L, W, #) are not supported.
Related
The epoch converter reads timestamps; the timezone planner compares times across cities.
Bookmark this page (Ctrl+D, or ⌘D on Mac) or install the app — it works offline the next time you need it.