ToolRivet v0.1.0

Developer Tools

Cron Expression Parser

Parse and explain cron expressions directly in your browser.

Break down any standard 5-field cron expression into its individual fields and see a plain English explanation of when it will run.

Cron Expression Parser

Parse and explain each field of a standard 5-field cron expression.

Format: minute hour day month weekday

Field reference

Minute0-59
Hour0-23
Day of month1-31
Month1-12
Day of week0-7 (0 and 7 = Sunday)

Output

// Parsed fields will appear here.

// Related

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How to use

  1. 1. Enter a cron expression

    Paste a 5-field cron expression such as 0 9 * * 1-5.

  2. 2. Click Parse

    Each field is validated and explained individually, then combined into a readable sentence.

  3. 3. Copy the result

    Copy the parsed output to use in documentation, pull requests, or code comments.

Example

The expression 0 9 * * 1-5 triggers at 09:00 on weekdays. Load the example in the tool to see the full breakdown. 

Expression: 0 9 * * 1-5

Minute:       0         -> 0
Hour:         9         -> 09
Day of month: *         -> every day of the month
Month:        *         -> every month
Day of week:  1-5       -> Monday through Friday

Human readable: At 09:00, Monday through Friday

// chap. 05 — FAQ

Frequently asked.

Answers to the questions people search for most when looking for free, private developer utilities. 

/* indexed.txt */
- free for everyone
- no cookies
- input stays local
- public roadmap
01 What cron format does this support? +
This tool supports standard 5-field cron expressions in the format: minute hour day-of-month month day-of-week.
02 Does it run locally? +
Yes, parsing happens entirely in your browser. No data is sent to a server.
03 What does 0 9 * * 1-5 mean? +
It means the job runs at 09:00 every Monday through Friday.