Analyze and debug crontab schedules. Paste a complete cron expression line (with or without a command) to validate syntax, expand fields into list values, view plain-English descriptions, and schedule upcoming runs.
Field Expansion Breakdown
| Field | Raw Value | Allowed Range | Active Matched Values |
|---|
Key Features of Cron Parser
- Multi-Field Parsing Parse 5 or 6 field expressions.
- Live Translation Live English schedules translation.
- Execution Plotting Exact next 5 execution time calculations.
Cron Parser Examples
Standard Hourly Cron
Parse a classic hourly cron pattern.
Input
0 * * * *Output
Every hour on the hourHow to Use Cron Parser
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1. Paste a Cron Expression
Type or paste a 5-field or 6-field cron expression into the input field.
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2. View Next Run Times
The tool shows the next scheduled execution dates and times.
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3. Copy the Parsed Output
Copy the human-readable schedule or the JSON breakdown of the expression fields.
Common Use Cases for Cron Parser
- Debugging Server Schedules Debugging failing server cron configurations.
- Schedule Auditing Auditing scheduled job triggers.
- Timezone Verification Verifying timezones of automated logs.
The Technical Details
Leverages client-side parsing modules to evaluate time boundaries asynchronously relative to local clock intervals.
Frequently Asked Questions
What is the difference between 5-field and 6-field cron?
Standard cron has 5 fields (minute to day-of-week). Some systems like Spring add a 6th field for seconds at the start.
Does the parser handle timezones?
The parser shows times relative to your local browser timezone. Server-side cron runs in the server's configured timezone.
Is any data sent to a server?
No. All parsing runs in your browser; nothing is uploaded or stored.
Are named shortcuts like @daily supported?
Yes. Common shortcuts like @daily, @weekly, @monthly, @hourly, and @yearly are recognized and parsed.