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Cron expression parser — offline

Plain-English explanations and the next five run times, computed on your device.

100% private — files never leave your device

How it works

  1. 1

    Type or paste a cron expression.

  2. 2

    Read the plain-English description.

  3. 3

    Check the next five runs in your local timezone.

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Frequently asked questions

Is my cron expression sent anywhere?

No — parsing and the schedule preview run entirely in your browser.

Which cron syntax is supported?

Standard 5-field cron (minute hour day-of-month month day-of-week), plus optional seconds as a 6th leading field and shortcuts like */15 and ranges.

What timezone are the next runs shown in?

Your browser's local timezone, which is what most people actually want when sanity-checking a schedule.