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Converter
Convert crontab format between standard cron and enhanced formats
Execution
Fill in the form, run the tool, and review the result in one place.
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Tool usage guide
The Crontab Converter is a precise utility designed to parse and translate complex cron expressions into human-readable text, systemd timers, or alternative cron formats, ensuring your automated tasks are scheduled correctly.
Background
A legacy server uses a crontab entry '0 2 * * *' to run nightly backups.
Problem
The team is moving to a modern Linux distribution that prefers systemd timers over cron.
How to use
Input '0 2 * * *' and select 'Systemd Timer' as the target format.
Outcome
The tool provides the equivalent 'OnCalendar=*-*-* 02:00:00' configuration for the systemd timer unit.
Background
A project repository contains a complex cron expression '*/15 9-17 * * 1-5'.
Problem
The developer is unsure exactly when the job executes and wants to verify the schedule.
How to use
Input '*/15 9-17 * * 1-5' and select 'Human Readable' as the target format.
Outcome
The tool outputs a clear description: 'Every 15 minutes, between 09:00 AM and 05:59 PM, Monday through Friday'.
Standard cron typically uses 5 fields (minute, hour, day of month, month, day of week), while enhanced formats often include a 6th field for seconds or years.
Yes, select 'Systemd Timer' as your target format to receive the equivalent OnCalendar syntax for systemd units.
The tool parses the input string and will return an error if the syntax does not conform to standard cron specifications.
No, all conversions are performed locally in your browser; your data is not saved or transmitted to any server.
This tool is designed to convert existing cron expressions into other formats, not to generate cron syntax from natural language descriptions.