GluePuddingTool

Cron Expression Humanizer

Translate 5 or 6 field cron expressions into plain-language descriptions with next run times. Supports L, W, # and @daily presets, plus a visual builder that generates cron from options.

FreeOnline Tool
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How to Use

In the 'Cron to Chinese' mode, enter a cron expression such as 0 9 * * 1-5. Both 5- and 6-field formats are accepted, along with special characters * / - , ? L W # and preset aliases like @daily, @hourly, @monthly and @yearly. Click 'Translate' to get a plain-language description, a list of next run times and field details. Switch to the 'Visual Builder' mode, pick a frequency (every minute, hourly, daily, weekly or monthly) and fill in the interval, time, weekdays or day of month, and a valid cron expression with its description is generated automatically. Common presets such as daily at midnight or weekdays at 9am are one click away.

Features

  • Translates 5- and 6-field cron expressions into readable descriptions
  • Supports special characters ? L W # and presets @daily, @hourly, @monthly, @yearly
  • Lists the next run times and detects 6-field expressions with seconds
  • Visual builder generates cron expressions from plain options
  • Presets for daily midnight, weekdays 9am, every 5 minutes and more

Use Cases

Decode unfamiliar scheduled jobs
When taking over servers or databases, translate someone else's cron expression into plain language to understand the schedule
Set up backups and reports
Build the expression and preview next run times before creating scheduled jobs on cloud platforms to avoid typos
Verify migrated expressions
When moving tasks between servers, confirm the translated meaning matches what you expect
Learn cron semantics
Use the human-readable description and next run times to understand the five fields and special characters

FAQ

Which special characters are supported?
* / - , ? L W # plus preset aliases @daily, @hourly, @monthly and @yearly, covering nearly all scheduled task scenarios
What does a 6-field expression mean?
It adds a seconds field at the front compared with the standard 5 fields. The tool detects this and shows a 'contains seconds' indicator
Why are next run times missing sometimes?
Expressions containing L (last day) or W (weekday) cannot be computed precisely, so a note is shown and any results are approximate
What can the builder generate?
Every minute (adjustable interval), hourly (at 00, 15, 30 or 45), daily, weekly (choose weekdays) and monthly (choose a day; multiple days like 1,15 are supported)