Writer & Dev
Cron Expression Parser: Translate Crontab Into Plain English
Turn cryptic crontab lines like 30 9 * * 1-5 into a clear sentence, with a field-by-field breakdown. Handy presets cover the schedules people need most.
Runs in your browser — your text is never uploaded or stored.
Quick answer
Cron Expression Parser is a free online tool that turn cryptic crontab lines like 30 9 * * 1-5 into a clear sentence, with a field-by-field breakdown. Handy presets cover the schedules people need most.
- Cost: free, no signup or limits.
- Privacy: runs 100% in your browser; text is never uploaded.
- Works on: desktop and mobile browsers, offline once loaded.
- Category: Writer & Dev.
minute hour day-of-month month day-of-week
Runs at 9:30, on Monday–Friday.
| Field | Value | Meaning |
|---|---|---|
| Minute | 30 | 30 |
| Hour | 9 | 9 |
| Day of month | * | every day |
| Month | * | every month |
| Day of week | 1-5 | Monday–Friday |
How to Use
- 1.Paste a five-field cron expression, or pick a preset.
- 2.Read the plain-English summary above the field breakdown.
- 3.Copy the expression once it matches the schedule you want.
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FAQ
Which cron format is used?
The standard five-field crontab format: minute, hour, day-of-month, month and day-of-week.
Are ranges and steps supported?
Yes — asterisks, */5, 1-5 and comma lists such as 0,15,30,45 are all understood.
Does it support seconds or @yearly?
Not yet. Six-field (seconds) and @-shortcut syntax vary by scheduler, so stick to the five-field form.
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