DevFmt/

Cron Parser

Input — Cron Expression
Output — Description

How to use Cron Parser

Cron Expression Parser translates cron syntax into a plain-English description of when a job will run. Cron expressions are compact but easy to misread — this tool removes the guesswork by explaining exactly what schedule an expression represents.

Enter a standard five-field cron expression (minute, hour, day-of-month, month, day-of-week) and instantly read a clear description such as 'At 2:30 AM, every day' or 'Every 15 minutes, Monday through Friday'. Quick-access buttons let you drop in common schedules to use as a starting point.

Key features: plain-English explanation of any 5-field cron expression, quick presets for common schedules, support for ranges, lists, steps, and wildcards, and real-time parsing as you type.

Cron expressions drive scheduled jobs across Linux systems, CI/CD pipelines, serverless functions, and database tasks. A small mistake — like confusing the day-of-month and day-of-week fields — can cause a job to run far too often or not at all. This parser helps you confirm a schedule before you deploy it. All parsing runs locally in your browser.

FAQ

What is a cron expression?
A cron expression is a string of five fields — minute, hour, day-of-month, month, and day-of-week — that defines a recurring schedule. For example, '0 9 * * 1' means 9:00 AM every Monday.
How do I read a cron expression?
Paste it into the input field and the tool describes the schedule in plain English, so you don't have to decode each field manually.
What do the special characters mean?
An asterisk (*) means 'every' value, a comma lists specific values (1,15), a hyphen sets a range (1-5), and a slash defines steps (*/15 means every 15 units).
Which cron format is supported?
The standard five-field cron format used by Linux crontab and most schedulers. It parses ranges, lists, steps, and wildcards.

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