Free Cron Expression Parser

Parse cron expressions to human-readable schedules and see the next 5 run times. Runs in your browser — your data never leaves your machine.

minutehourdaymonthweekday
Human Readable

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Next 5 Runs

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All parsing happens in your browser using JavaScript. Nothing is uploaded to any server. Safe for any environment.

⏰ Next 5 Runs

See exactly when your cron job will fire next. The parser calculates the next 5 scheduled run times from the current moment.

📋 Quick Examples

Common cron patterns are available as one-click examples. Great for learning cron syntax or quickly starting from a known schedule.

How to Parse Cron Expressions

Enter a standard 5-field cron expression and the parser instantly translates it to a human-readable description. You'll also see the next 5 scheduled run times calculated from the current moment. Click any of the quick example buttons to load common schedules like "every minute," "daily at midnight," or "weekdays at 9 AM."

Cron Expression Syntax

A cron expression consists of five fields separated by spaces: minute hour day-of-month month day-of-week. Each field can be a specific value, a range (1-5), a list (1,3,5), an interval (*/15), or a wildcard (*). For example, 0 9 * * 1-5 means "at 9:00 AM, Monday through Friday."

Frequently Asked Questions

What cron format is supported?
The parser supports the standard 5-field cron format: minute (0-59), hour (0-23), day of month (1-31), month (1-12), and day of week (0-6, where 0 is Sunday).
Does it show next run times?
Yes — the parser calculates and displays the next 5 scheduled run times based on the cron expression you enter.
What about 6-field cron expressions?
Only the standard 5-field cron format is supported. 6-field formats (with seconds) and 7-field formats (with years) are not currently supported.
Is this parser free?
Yes — completely free, forever. No sign-up, no account, no usage limits.
Is my data safe?
All parsing happens locally in your browser using JavaScript. Your cron expressions are never uploaded to any server. It's safe to use with any data.
What do the cron fields mean?
The five fields are: minute (0–59), hour (0–23), day of month (1–31), month (1–12), and day of week (0–6, where 0 is Sunday). Use * for any value, */n for intervals, and commas for lists.