Crontab Parser & Builder
Free online crontab parser and generator. Standard 5-field syntax and common macros, a visual builder, and the next 5 run times computed in-browser. Runs entirely in your browser.
How to use
What it does
Crontab is the syntax used on Unix-like systems to describe scheduled jobs. It has five fields: minute hour day month weekday. This tool parses any valid expression into a plain-language description and lists the next 5 run times (computed by stepping minute-by-minute for about two years). It also supports macros like @daily, @hourly, @weekly, @monthly and @yearly, plus a visual builder where you click values to compose the expression.
Example
Expression:
0 9 * * 1-5means "run at 09:00 every weekday". The tool lists the next five weekday dates and times.
Field syntax
*any value1,15a list, meaning the 1st and 15th1-5a range*/15a step, meaning every 15th unit
Everything runs in your browser and works offline.