Crontab File Parser - Convert Jobs to JSON

Parse entire crontab files into structured JSON. Extract jobs, environment variables, and comments with human-readable schedule descriptions.

Drop crontab file here or click to browse

crontab, .txt files

Crontab Input

JSON Output

Frequently Asked Questions

Standard 5-field cron expressions (minute, hour, day, month, weekday) plus the command. Special strings like @daily, @hourly are also supported.

Environment variable assignments (NAME=value) in crontab are parsed and included in the output as a separate 'environment' section.

Yes, comments starting with # are included in the output to maintain context about what each job does.

@reboot, @yearly, @annually, @monthly, @weekly, @daily, @midnight, and @hourly are converted to their equivalent 5-field expressions.

Each cron expression gets a plain English description like 'At 2:30 AM every day' or 'Every 15 minutes on weekdays'.

The parser checks for valid field ranges (0-59 minutes, 0-23 hours, etc.) and reports errors for invalid values.

Yes. All parsing happens locally in your browser. Your scheduled tasks and commands never leave your device.

Run 'crontab -l > mycrontab.txt' on your server to export your user's crontab to a file.

Ranges (1-5), lists (1,3,5), and steps (*/15) are fully parsed and explained in the human-readable output.

The 6-field system format with username (found in /etc/crontab) is also supported.