Random Number Generator
Generate random integers or decimals in any range. Use no-duplicates mode for unique draws.
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About this tool
This generator uses your browser's cryptographically secure random number API (Math.random) to produce random numbers in any range. Use it for simulations, sampling, games, picking lottery numbers, or anywhere you need unbiased random values. The no-duplicates mode ensures each number appears at most once - like drawing from a hat.