Cron Schedule Explainer & Visualizer — Understand Any Cron Expression
Demystify cron syntax. Translates 5-field cron strings into human-readable sentences and shows upcoming run schedules.
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How to do it
- 1Choose your settings
Fill in the details or pick the options you need.
- 2See the result
The preview updates right away as you change things.
- 3Download or save it
Save the result to your device. Nothing is sent to or stored on a server.
About this tool
Eliminate cron scheduling mistakes. Enter any standard cron expression (minute, hour, day of month, month, day of week) to get an immediate plain English explanation. Visualizes field breakdowns and calculates the exact next 10 execution dates and times in your local timezone.
Tips for best results
Take a moment to read the options before you start, and try the tool with a small sample first. Everything runs in your browser on your own device, so nothing you type or add is uploaded, and closing the tab clears it. If something does not look right, reload the page and try again, or use the report link on this page to tell us what went wrong so we can fix it. If a result still looks wrong, change one value at a time to see which box matters most. Bookmark this page if you will need the tool again.
Quick facts
- Category: Documents
- Works in your browser, no sign-up, no upload.
- Your input stays on your device.
- Available in many languages.
- Content last reviewed:
Frequently asked questions
What cron fields are supported?
Standard 5-field cron expressions are supported: minute (0-59), hour (0-23), day of month (1-31), month (1-12), and day of week (0-6).
Can I view the next execution times?
Yes, it calculates and displays the exact date, day, and time for the next 10 upcoming scheduled runs.
Are common presets available?
Yes, one-click presets are available for every 15 minutes, hourly, daily at midnight, and more.
Are step values like '*/15' supported?
Yes, wildcards (*), step values (*/n), ranges (e.g. 1-5), and comma-separated lists are fully supported.