Cron Expression Parser
Cron is a job scheduler in Unix systems that uses a compact 5-field syntax to describe schedules: minute, hour, day of month, month, and day of week. This tool parses cron expressions into clear text descriptions and shows the next 5 scheduled runs.
Cron Expression Syntax Each of the 5 fields can contain: a specific value (5), a range (1-5), a list (1,3,5), a step (*/5), or an asterisk (*) meaning any value. For example, "30 9 * * 1-5" means "every weekday at 9:30 AM". This tool runs entirely in your browser — your data is never sent anywhere.
Description:
Next 5 runs:
Syntax Reference
| Field | Allowed Values |
|---|---|
| Minute | 0–59 |
| Hour | 0–23 |
| Day of Month | 1–31 |
| Month | 1–12 |
| Day of Week | 0–7 (0 & 7 = Sunday) |
Free online tool for parsing cron expressions. Enter a 5-field cron expression and instantly get a clear text description of the schedule and a table of the next 5 runs. All standard constructs are supported: asterisk (*), step (*/N), range (N-M), list (N,M), and specific values.
Cron is the standard job scheduler in Unix/Linux systems. Its syntax is used not only in crontab, but also in many frameworks (Laravel, Spring, Django), CI/CD systems (GitHub Actions, GitLab CI), and cloud services (AWS CloudWatch, Google Cloud Scheduler). Understanding cron expressions is an essential skill for any developer and DevOps engineer.
The tool runs entirely in your browser — your data is never transmitted anywhere. A reference table with allowed values for each field helps you quickly compose or verify a cron expression. Perfect for debugging task schedules and verifying cron configurations.