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Random Number Generator

Generate random numbers in any range, with or without duplicates.

Generated locally in your browser.

Understanding your result

For unique results the count cannot exceed the size of the range. Decimal mode returns fractional values.

Formula and method

Numbers are drawn uniformly between the minimum and maximum (inclusive for whole numbers) using the browser’s random generator. “No duplicates” draws without replacement.

Worked example

Five unique whole numbers between 1 and 100 might be 7, 23, 44, 78 and 95.

How to use this tool

  1. Set the minimum and maximum.
  2. Choose how many numbers and any options.
  3. Press Generate.

Common mistakes to avoid

  • Requesting more unique numbers than the range allows.

About the Random Number Generator

Generate random numbers for draws, games, sampling and decisions — one at a time or many at once.

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Frequently asked questions

Is it suitable for raffles?

Yes, for casual draws. For regulated or high-stakes lotteries use an audited system.