DevToolsKit

Cron Expression Generator

Free

Build cron expressions with human-readable explanations.

Runs 100% in your browser — data stays private

* * * * *

Every minute

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About Cron Expression Generator

Build cron expressions visually and get instant human-readable explanations. Perfect for setting up scheduled jobs on Linux, Kubernetes CronJobs, GitHub Actions, and cloud schedulers.

Select presets for common schedules or customize each field (minute, hour, day, month, weekday) manually.

Key Features

  • Visual cron builder
  • Human-readable explanation
  • Common schedule presets
  • Copy expression
  • Real-time preview

How to Use

  1. 1Choose a preset or set each field.
  2. 2Review the generated expression.
  3. 3Read the human explanation.
  4. 4Copy the cron expression.

Common Use Cases

Setting up Linux crontab jobs
Configuring Kubernetes CronJobs
Scheduling GitHub Actions
Cloud function schedulers (AWS, GCP)

Frequently Asked Questions

What cron format does this use?+

Standard 5-field cron format: minute hour day-of-month month day-of-week.

What does * mean in cron?+

An asterisk means 'every' — e.g., * in the minute field means every minute.

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