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Crontab Syntax Translator

Paste a cron expression and instantly see a plain-English description of the schedule plus the next 5 execution times in your local timezone. Supports all standard 5-field cron syntax — 100% browser-based, zero uploads.

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Common Schedule Presets
Syntax Reference:   * * * * *  = minute (0-59) · hour (0-23) · day (1-31) · month (1-12) · weekday (0-7, 0=Sun)  |  */5=step   1-5=range   0,12=list

How ZeroData protects your privacy

  • ✓ No Uploads: Processing happens entirely via client-side JavaScript.
  • ✓ No Storage: We do not have a database. We physically cannot save your data.
  • ✓ No Tracking: We don't log what you process or track your inputs.
  • ✓ Verifiable: Check your DevTools Network tab. You will see 0 outbound requests.

What This Crontab Translator Does

Cron expressions are compact but opaque. A string like */15 9-17 * * 1-5 is difficult to read at a glance, and a single misconfigured field can send a job running at 3 AM instead of 3 PM. This translator eliminates that ambiguity by converting any 5-field cron expression into a plain-English sentence and showing the next 5 execution times in your local timezone.

Supported Cron Syntax

  • Wildcards (*): Matches every value in the field.
  • Step values (*/5): Matches every Nth value. */5 in the minute field means every 5 minutes.
  • Ranges (1-5): Matches values from the start to the end. 1-5 in the weekday field means Monday through Friday.
  • Lists (0,12,18): Matches each value in the comma-separated list.
  • Shortcuts: @hourly, @daily, @weekly, @monthly, @yearly, @reboot are all supported.

Use with the Cron Job Generator

Need to build a new cron expression instead of translating an existing one? Use the Cron Job Generator to configure schedules visually. Both tools work together to make cron scheduling fully transparent and verifiable before it reaches your production crontab or Kubernetes CronJob manifest.

How to Use the Crontab Syntax Translator

  1. Paste or type any standard cron expression (e.g. '0 2 * * 1') into the input field.
  2. The tool instantly shows a plain-English description of the schedule.
  3. View the next 5 scheduled run times calculated in your local timezone.
  4. Use the presets panel to quickly load common schedules and see their translations.

Common Use Cases

  • Translating inherited or legacy cron expressions into human-readable schedules for documentation.
  • Verifying scheduled job timing before deploying to production Linux or Kubernetes environments.
  • Explaining cron schedules to non-technical stakeholders or during code reviews.
  • Checking the next execution times of a cron expression in your local timezone.
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Frequently Asked Questions

What does a crontab translator do?

A crontab translator converts a cron expression like '*/15 9-17 * * 1-5' into plain English such as 'Every 15 minutes, between 09:00 and 17:59, Monday through Friday'. It removes the guesswork from cron syntax and helps you verify that your schedule runs exactly when you intend.

Can I type English and get a cron expression back?

This tool primarily translates from cron expressions into English descriptions. For building cron expressions visually, use our Cron Job Generator tool which lets you configure each field with presets and instant previews.

What cron syntax is supported?

Standard 5-field Unix crontab syntax is supported, including wildcards (*), step values (*/5), ranges (1-5), lists (0,12,18), and the common shortcuts @yearly, @monthly, @weekly, @daily, @hourly, and @reboot.

Does this tool show upcoming run times?

Yes. The translator shows the next 5 scheduled run times based on your cron expression and your current local timezone, so you can confirm the schedule before deploying.

Is any data sent to a server?

No. All translation and run-time calculation runs 100% in your browser. Your cron expressions, schedule configurations, and job details never leave your device.

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