Math

Random Number Generator

Pick a single random number, draw multiple unique winners, or shuffle a list. Uses cryptographically secure randomness.

Mode 1: Pick numbers from a range

Mode 2: Pick a winner from a list

Where to use random numbers

  • Giveaways & raffles — pick winners fairly from a list
  • Games & dice — replace physical dice
  • Decision making — can't choose? Let randomness pick
  • Sampling — pick 10 random items from 1,000 to audit
  • Passwords — generate random codes

Frequently asked questions

How random are these?

Cryptographically secure — uses crypto.getRandomValues(). Suitable for contests.

Duplicates?

Toggle on/off. For draws, keep it OFF (unique).