A modern cron explainer
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Cron, decoded.
Schedules made readable.

A free cron expression explainer, translator, and builder — supporting Unix, Quartz, Spring, AWS, GitHub Actions, and Kubernetes.

Paste any cron expression. Get a plain-English translation, the next 10 run times, and a per-field breakdown. Supports Unix, Quartz, Spring macros, AWS EventBridge, GitHub Actions, and Kubernetes CronJob — all in one tool.

Live translation Quartz + Spring Timezone-aware Cloud variants Privacy-first

Explainer

5 fields separated by spaces: minute hour day-of-month month day-of-week. Or use a macro like @daily or @hourly.
Translation At 9:00 AM on weekdays
    Why crontabsheet

    A cron tool that finally understands depth.

    ⚡

    Instant translation

    Type as you go — the English description updates immediately. No "Calculate" button.

    🌍

    Timezone-aware

    Pick any timezone for the next-run preview. Useful when servers run UTC but you don't.

    ☁️

    Cloud variants

    Dedicated pages for AWS EventBridge, GitHub Actions, Kubernetes, and Spring — each with the right syntax rules.

    📅

    Calendar export

    Download a .ics file to subscribe to your schedule in any calendar app. (Coming soon)

    🔒

    Privacy-first

    Everything runs in your browser. No server, no logging, no telemetry on what you paste.

    📚

    60+ worked examples

    Dedicated pages for every common pattern across every major platform. (Coming soon)

    Browse the site

    Everything you can do with cron, in one place.

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