Cron Expression Tool
Validate expressions, build from phrases or the visual form, preview next runs, hit-check a time, and copy framework snippets.
Everything on this page runs in your browser — nothing is uploaded unless noted.
Validabout every 24h
At 00:00
Visual builder
Minute
Uses wildcard *
Hour
Uses wildcard *
Day of month
Uses wildcard *
Month
Uses wildcard *
Day of week
Uses wildcard *
Templates & history
60 built-in · showing matches
Frequency (13)
+7 more in library
Daily (10)
+4 more in library
Weekly (8)
+2 more in library
Monthly (8)
+2 more in library
Business hours (7)
+1 more in library
Maintenance (7)
+1 more in library
DevOps / CI (7)
+1 more in library
Custom
Recent
No history yet
Next runs
| # | Time | In | |
|---|---|---|---|
| 1 | 2026-11-06 00:00:00 (UTC+8) | in 10h | |
| 2 | 2026-11-07 00:00:00 (UTC+8) | in 34h | |
| 3 | 2026-11-08 00:00:00 (UTC+8) | in 2d | |
| 4 | 2026-11-09 00:00:00 (UTC+8) | in 3d | |
| 5 | 2026-11-10 00:00:00 (UTC+8) | in 4d | |
| 6 | 2026-11-11 00:00:00 (UTC+8) | in 5d | |
| 7 | 2026-11-12 00:00:00 (UTC+8) | in 6d | |
| 8 | 2026-11-13 00:00:00 (UTC+8) | in 7d | |
| 9 | 2026-11-14 00:00:00 (UTC+8) | in 8d | |
| 10 | 2026-11-15 00:00:00 (UTC+8) | in 9d |
Run density calendar
2026-11
Hit check
Code snippets
0 0 * * * /path/to/commandHow to use
- Enter an expression or a short phrase, then check the natural-language summary.
- Tune fields with the visual builder; switch Linux / Quartz as needed.
- Preview next runs in your timezone, then copy a share link or code snippet.
FAQ
How does phrase → Cron work?
Common Chinese and English phrases are matched with rules (not open-ended AI). Examples: every 5 minutes, weekdays at 9am, 每天凌晨2点.
Can I share my expression?
Use Copy share link. The URL encodes expr, type (linux
What about Spring / K8s / GitHub Actions?
The snippet panel copies ready-to-paste fragments filtered by the current syntax.