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Calculators

Random Number Generator

Generate random numbers in any range - whole or decimal, with or without repeats, sorted - using your browser's crypto.

  • Runs in your browser
  • Batch
  • Works on mobile
  • In: Range and options
  • Out: Numbers, TEXT
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About Random Number Generator

Set a minimum and maximum, how many numbers you want (up to 10,000), the number of decimal places and whether repeats are allowed, then press Generate. Results can be sorted and put one per line or on a single line.

Numbers come from crypto.getRandomValues with rejection sampling, so every value in the range is equally likely - no modulo bias. That is fair enough for raffles, classroom picks and games; it is not a certified system for regulated lotteries or security keys.

How to use it

  1. 1Enter the minimum and maximum.
  2. 2Choose how many numbers, decimal places and whether repeats are allowed.
  3. 3Press Generate; copy or download the numbers.

Questions

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