Convert CRON expressions to human-readable format or generate CRON from natural language.
Common Cron Examples:
Easily convert complex CRON expressions to plain English descriptions and vice versa. Enter a CRON format to see what it means in human terms, or describe when you want a task to run using natural language and get the appropriate CRON expression generated automatically. Perfect for developers working with scheduling systems, task automation, and job scheduling in Linux, Unix, or other systems. Online cron editor works in any browser.
A cron expression is a short schedule made of five fields: minute, hour, day of month, month and day of week. Each field takes a number, list, range or step, and * means every value. For example, 0 9 * * 1-5 runs at 9:00 AM, Monday to Friday.
The slash sets a step. In the minute field, */15 means every 15 minutes starting at minute 0, so the job runs at :00, :15, :30 and :45. A range with a step, such as 0-30/10, runs at minutes 0, 10, 20 and 30.
Only the Natural Language box does. Your description is sent to OpenTools' server and passed to an AI language model, which returns an expression with an explanation, so double-check it before production use. Converting a cron expression to plain English runs in your browser with no AI.
Yes. The translator and the AI generator are both free and need no account. The AI generator is rate-limited per visitor to keep it available for everyone, so a burst of rapid requests may be turned away for up to a minute.
