UltimateTools
Math & Education

How to Use the Random Number Generator

Set a minimum and maximum value to generate a random number within that range, or switch to list mode and paste a list of names or items to shuffle into a random order — both modes use the same underlying secure randomness, applied to whichever task is needed.

The Random Number Generator supports both number generation and list shuffling — here's how to use each mode.

Generating a random number

Set a minimum and maximum value, and the tool generates a random number within that range — useful for anything from picking a random winner number to making a simple random decision.

Shuffling a list

Paste a list of names or items, and the tool shuffles them into a random order (or randomly selects one, if that mode is offered) — useful for randomly assigning teams, drawing a random name, or randomizing an order.

Frequently asked questions

Can I generate multiple random numbers at once, without repeats?

Check whether the specific tool offers a "no repeats" or "unique numbers" option — if not, generating numbers one at a time and discarding any repeats achieves the same result manually.

Is the randomness used here suitable for something like a raffle drawing?

For a genuinely secure, unbiased selection, using a tool built on cryptographically secure randomness (as covered in the true-randomness guide) is appropriate for this kind of use.

Tools mentioned in this guide

Random Number Generator

Generate random numbers or shuffle a list of names.