Tools › Cron Expression Explainer
Cron Expression Explainer
Paste any cron expression and get a plain-English explanation instantly. Supports ranges, steps, lists and @daily/@hourly aliases.
Use it from code
The same function is available as an API endpoint. Free tier: 100 calls per day without a key. Pro lifts the limit.
curl -X POST https://spincrus.uz/api/v1/tools/cron-expression-explainer \
-H "content-type: application/json" \
-H "x-api-key: YOUR_KEY" \
-d '{"expression":"0 9 * * 1-5"}' FAQ
What are the five cron fields?
Minute (0-59), hour (0-23), day of month (1-31), month (1-12) and day of week (0-7, where both 0 and 7 mean Sunday).
What does */15 mean?
A step value: "every 15th unit" starting at the field minimum, so */15 in the minute field runs at :00, :15, :30 and :45.
Does this support @daily and @hourly?
Yes. The standard aliases @yearly, @monthly, @weekly, @daily, @midnight and @hourly are expanded before parsing.
Related tools
Readability Checker
Free readability score calculator: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog and ARI, plus word count and reading time.
JSON to CSV Converter
Convert JSON arrays to CSV online. Nested objects are flattened with dot notation, quotes are escaped correctly, works with large files.