Developer tools
Cron Expression Parser

Cron expression parser

Not sure when 0 */6 * * 1-5 actually runs? Paste any cron expression and CodeForge explains it in plain English, breaks down each field and lists the upcoming run times — before you deploy the job.

Open Cron Expression Parser — free Get the Windows app

Free in your browser — no sign-up. Install from the Microsoft Store to use it offline on Windows 10 and 11.

How to use it

Open the Cron Parser and type an expression, or pick a preset such as “Weekdays at 9 AM”.
Read the plain-English schedule and the field-by-field breakdown.
Preview the next 10, 25, 50 or 100 runs, then copy them or export a CSV.

Example

Expression

*/15 * * * *
0 9 * * 1-5
0 0 1 * *
0 */6 * * *
0 0 1 1,4,7,10 *

Meaning

Every 15 minutes
At 09:00, Monday to Friday
At midnight on the 1st of every month
Every 6 hours (00:00, 06:00, 12:00, 18:00)
At midnight on 1 Jan, Apr, Jul and Oct

The five fields are: minute, hour, day of month, month, day of week. Six-field expressions with a leading seconds field are accepted too.

Features

Plain-English explanation and a breakdown of every field.
Next run times — preview 10, 25, 50 or 100 upcoming runs.
Presets for common schedules: every minute, every 5 or 15 minutes, hourly, daily, weekdays, weekly, monthly, quarterly and yearly.
Copy or export the run list as CSV.

Frequently asked questions

What do the five cron fields mean?

In order: minute (0–59), hour (0–23), day of month (1–31), month (1–12) and day of week (0–6, where 0 is Sunday). * means every value, */n means every n, a-b is a range and a,b is a list.

Which time zone does cron use?

Cron uses the time zone of the server or scheduler running it, often UTC. Check your platform’s settings before relying on a specific hour.

Is the cron parser free?

Yes.

One workspace for all of it

Cron Expression Parser is one of 18 developer tools in CodeForge — alongside a JSON formatter, JWT decoder, regex tester, UUID and hash generators, and more. Press Ctrl+K to jump to any of them.