Free Cron Expression Parser & Generator
Translate cron expressions into human-readable schedules, or build one visually. Supports 5-field and 6-field formats β a must-have for DevOps and developers.
Key Features
Human-Readable Parsing
Translate cron expressions into plain language like "every day at midnight".
Next Run Time
Compute the next execution time so you can verify your configuration.
Visual Generator
Pick minutes, hours and weekdays to auto-build a valid expression.
Multiple Formats
Supports the standard 5-field format and the 6-field format with seconds.
How to Use
Enter an Expression
Paste or type a cron expression, e.g. 0 0 * * *.
See the Result
It is auto-translated into plain language, with the next run time computed.
Generate or Copy
Use the picker panel to build a new expression, then copy it with one click.
Frequently Asked Questions
How many fields does a cron expression have?
Standard is 5 fields: minute hour day month weekday. Some systems use 6 fields, adding a seconds field at the front. This tool supports both.
What is the difference between * and ?
* means any value for that field. ? is only used for day and weekday to mean "unspecified" β because day and weekday cannot both be set.
Are special symbols supported?
Yes β common symbols like *, ?, ,, -, / (step), L (last), W (weekday), and # (nth weekday) are supported.
Is the parsing result accurate?
It is based on standard cron rules. Actual execution depends on your scheduler platform (Linux crontab, K8s, XXL-JOB, etc.).