Cron Expression Parser
Turn cron into plain English and preview the next 5 runs. Quickly verify the schedule matches your intent.
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How to Use
Use the standard 5-field form (minute, hour, day, month, day-of-week). Tap a preset chip to fill in common patterns.
The expression is humanized into "Every day at 9:00 AM"-style text the moment you type.
See the next 5 fire times in your local timezone, displayed at the bottom of the page.
FAQ
Which dialect is supported?
Standard 5-field cron (minute, hour, day-of-month, month, day-of-week). Wildcards (*), ranges (0-9), lists (1,3,5), and steps (*/5) are all recognized.
What about L, W, # extensions?
AWS/Quartz extensions (L, W, #) are not supported. Stick to standard cron syntax.
How is day-of-week numbered?
0 (Sunday) – 6 (Saturday); 7 also means Sunday. Note that 1 means Monday, not Sunday.
Which timezone is used?
The browser's (your device's) local timezone. To compare with a server in another zone, convert the times accordingly.
Is anything sent to a server?
No — parsing and computation happen entirely in your browser.
