Cron Expression Helper

Decode cron schedules and build common patterns in seconds.
5-part cron No uploads
Cron expression
Runs in your browser
Format: minute hour day month weekday
Explanation
Privacy note: parsing happens locally in your browser.

What this cron helper does

It explains 5-field cron expressions and lets you pick common schedules like hourly or daily.

Cron format

This tool uses the classic 5-part format: minute hour day month weekday.

Tips for testing

Always test cron schedules in a safe environment to avoid unexpected runs.

How to read a cron expression

Paste a cron string or select a preset to understand it.

  1. Paste a 5-part cron expression.
  2. Read the explanation.
  3. Pick a preset to generate a new one.

FAQ

Does this tool support 6-part cron?
No, it focuses on the classic 5-part format.
Does it run jobs?
No, it only explains and generates expressions.
Does it upload data?
No. Everything runs locally in your browser.