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Crontab Expression Humanizer
Dev CoreTranslate cron expressions into plain English, validate syntax, inspect fields, and preview the next five run times — cronstrue + cron-parser, 100% in-browser.
100% client-side
cronstrue + cron-parser · offline
Translate standard 5-field Unix cron (and 6-field with seconds) into plain English, validate syntax, inspect each field, and preview the next five run times in your timezone.
Format: minute hour day month weekday · optional leading second for 6-field cron
Human-readable
At 09:00 AM, Monday through Friday
Field breakdown (5-field)
| Field | Value | Allowed |
|---|---|---|
| minute | 0 | 0–59, *, */n, ranges |
| hour | 9 | 0–23, *, */n, ranges |
| dayOfMonth | * | 1–31, *, ?, L, W |
| month | * | 1–12 or JAN–DEC |
| dayOfWeek | 1-5 | 0–7 (0/7=Sun), MON–FRI |
Next 5 runs (UTC)
- 1Jul 7, 2026, 9:00:00 AM
- 2Jul 8, 2026, 9:00:00 AM
- 3Jul 9, 2026, 9:00:00 AM
- 4Jul 10, 2026, 9:00:00 AM
- 5Jul 13, 2026, 9:00:00 AM
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