In-browser tool

Cron Expression Explainer

Understand any 5-field cron expression in plain language — minute, hour, day, month and weekday, explained field by field.

Everything runs in your browser — your input is never uploaded.

How it works

01
Type or paste your input
02
Get the result instantly
03
Copy the result

Frequently asked questions

What is a cron expression?

Five fields — minute, hour, day-of-month, month, day-of-week — that schedule a task. Paste one like */15 9 * * 1-5 and each field is explained. Runs in your browser.

Is my file uploaded to a server?

No. This tool runs entirely in your browser. You can open your browser's network tab and verify no request carries your file.