Random Date Generator

What this tool actually does

Choose valid start and end calendar dates and generate from 1 to 1,000 results. Both endpoints are eligible because the random day offset includes zero and the full day difference.

Checkable behavior

For a range of 2026-01-01 through 2026-01-03, every result is one of those three ISO dates. Output uses YYYY-MM-DD so it can be sorted without depending on a regional display order.

Controls, output and limitations

The start must not be later than the end. Dates are normalized at UTC midnight, which prevents daylight-saving transitions from skipping or duplicating a calendar day.

The generator samples with replacement, so duplicate dates are possible and a short sample is not expected to distribute evenly across the range.

Generation stays in the browser and uses cryptographic random integers. It does not exclude weekends or holidays, apply a time zone, attach times or guarantee a reproducible seeded sequence.