Crontab Guru

About This Spell

With a wizard's whisper, Enter a 5-field cron expression to see a human-friendly explanation and the next run times (if available).

How to Cast the Spell:

Use your magic to Type a cron like */15 9-17 * * 1-5.
Use your magic to Click Explain.
Use your magic to (Optional) Install croniter to view next runs.

What is Crontab Guru?

Crontab Guru is a free utility calculator from WizardOfAZ. Use it to work with values using flexible options as part of your planning and decision making, without installing extra software.

Because everything happens locally in your browser, your numbers stay under your control while you work with values using flexible options.

Popular ways to use Crontab Guru

Streamline planning and decision making by using Crontab Guru to work with values using flexible options.
Share deliverables faster—processed values are ready for download in seconds.
Combine Crontab Guru with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

Upload a sample file, cast the spell to work with values using flexible options, and download the processed result instantly.
Bookmark the Crontab Guru in your browser so recurring tasks stay only one click away.
Share the spell with teammates who need a quick, no-install way to work with values using flexible options.

Frequently asked questions

Is the Crontab Guru secure?

Yes. The Crontab Guru runs entirely in your browser, which means your numbers never leave your device.

What can I do with the Crontab Guru?

You can planning and decision making by processing values without uploading them to an external service.

Can I use Crontab Guru on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement Crontab Guru:

Age Calculator — Use it to calculate age values with instant results.
Base64 Tool — Use it to work with values using flexible options.
Birthday Countdown — Use it to work with values using flexible options.