Random Number Generator

Generate random numbers, random lists, dice rolls, and coin flips. Cryptographically secure and customizable. Free online tool.

Min

Max

Count

No duplicates

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Items (one per line)

Pick how many?

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Number of dice

Sides per die

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How Random Are These Numbers?

This tool uses your browser's built-in cryptographically secure random number generator (crypto.getRandomValues). This is the same source of randomness used in security applications and produces true unpredictable results — far better than Math.random().

Common Uses for Random Number Generators

Random number generators are used in games and simulations, statistical sampling, lottery and raffle drawings, randomized decision making, password generation, cryptography, and scientific experiments. The dice roller is perfect for tabletop games like Dungeons & Dragons.