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Random Number Generator

Generate random integers in an inclusive range, with or without repeats.

How the calculation works

Random 32-bit values use rejection sampling to avoid modulo bias. Unique draws use a partial shuffle of the range.

Inputs

  • Minimum
  • Maximum
  • Count
  • Repeats

Calculation details

Both endpoints are included. Generate up to 100 numbers per run; a unique draw requires enough values in the range.

A new draw appears only after pressing the button. Sharing preserves settings but does not reproduce a random result.

Updated: 2026-10-02