Cron Expression Parser Online

Parse and explain cron expressions.

Cron Expression
Common Examples
Cron Expression Reference

A cron expression has 5 fields separated by spaces:

       ┌───────────── minute (0–59)
       │ ┌──────────── hour (0–23)
       │ │ ┌─────────── day of month (1–31)
       │ │ │ ┌────────── month (1–12)
       │ │ │ │ ┌───────── day of week (0–6, Sun=0)
       * * * * *
Special Characters
  • * — any value
  • , — list separator (e.g., 1,3,5)
  • - — range (e.g., 1-5)
  • / — step values (e.g., */5 means every 5th)

About Cron Expression Parser Online

This free tool parses standard 5-field cron expressions and shows you exactly when your scheduled jobs will run. It converts cryptic cron syntax into plain English, breaks down each field, and calculates the next 10 execution times in UTC. Built by George Yeung. No data is sent to any server — everything runs in your browser.