Is there a tool available that can convert a cron schedule into a more user-friendly, easy-to-read format?

My search for an NPM package that can handle this task has been fruitless so far. I am in need of a cron library that can convert a monthly cron job into easily readable text. For example, inputting 0 0 14 * * should output "Monthly", rather than the current translation of "At 00:00 on day-of-month 14." which is not user-friendly.

Other examples include:

  • 0 8 * * * should be translated to "Daily"
  • 0 0 10 * * should also translate to "Monthly"

I would prefer to avoid creating my own custom library if there is an existing JS package that fits my requirements. Does anyone know of such a package?

javascriptnpmcronpackagescheduling

Answer №1

If you're looking to interpret cron expressions in a user-friendly way, check out the https://www.npmjs.com/package/cronstrue

cRonstrue stands as a JavaScript library specifically designed to parse a cron expression and generate a description that is easy for humans to understand.

cronstrue.toString("* * * * *");
> "Every minute"

cronstrue.toString("0 23 ? * MON-FRI");
> "At 11:00 PM, Monday through Friday"

cronstrue.toString("0 23 * * *", { verbose: true });
> "At 11:00 PM, every day"

cronstrue.toString("23 12 * * SUN#2");
> "At 12:23 PM, on the second Sunday of the month"

cronstrue.toString("23 14 * * SUN#2", { use24HourTimeFormat: true });
> "At 14:23, on the second Sunday of the month"

cronstrue.toString("* * * ? * 2-6/2", { dayOfWeekStartIndexZero: false });
> "Every second, every 2 days of the week, Monday through Friday"

cronstrue.toString("* * * 6-8 *", { monthStartIndexZero: true });
> "Every minute, July through September"

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