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Free Cron Expression Parser — Parse & Explain Cron Schedules
Understand and validate cron schedule expressions.
About Cron Expression Parser
Enter any cron expression (like "0 9 * * 1-5") and see a human-readable description of when it runs, plus the next 10 scheduled execution times. Handles standard 5-field cron, extended syntax with seconds, special characters (*, /, -, ,, ?, L, W, #), and predefined macros like @daily and @hourly. An essential reference for DevOps engineers, system administrators, and anyone configuring scheduled jobs.
How to Use Cron Expression Parser
- 1Type or paste a cron expression (e.g., '0 9 * * 1-5')
- 2The tool instantly explains: 'At 09:00 AM, Monday through Friday'
- 3See the next 5 scheduled execution times
- 4Invalid expressions are flagged with explanations
When to Use Cron Expression Parser
- ▸Decoding cron expressions for DevOps and system administration
- ▸Verifying scheduled job timing before deploying to production
- ▸Converting cron to human-readable descriptions
- ▸Learning cron syntax for certifications and interviews
Frequently Asked Questions
- What cron format does it support?
- Standard 5-field cron (minute, hour, day of month, month, day of week) used by most Unix/Linux systems and cron services. It also supports common shorthand like @daily, @hourly, and @weekly.
- What does '*/5 * * * *' mean?
- Every 5 minutes. The */5 in the minute field means 'every 5th minute starting from 0' — so 0, 5, 10, 15, 20, etc.