Generate random numbers instantly between any range. No signup, completely free. Also try our coin flip, dice roller, name picker, and more random tools.
A random number generator (RNG) produces numbers with no predictable pattern. Our free random number generator lets you generate random numbers instantly between any range — from simple 1 to 10 picks to large datasets of 1000 unique numbers. Use it for games, giveaways, sampling, decisions, lottery number selection, or any situation where you need a fair, unbiased random number. All generation happens in your browser — your inputs never leave your device.
Simply enter a minimum and maximum value, then click GENERATE or press Space or Enter. Your random number appears instantly. You can also use the quick preset buttons for common ranges like 1–10, 1–100, or 1–1000.
Our random number generator uses JavaScript's Math.random() function, which produces pseudo-random numbers. These are statistically indistinguishable from truly random numbers for virtually all everyday purposes — games, giveaways, decisions, and sampling. For cryptographic use, our password generator uses crypto.getRandomValues() instead.
Yes. Click "More options" to expand advanced settings, then increase "How many numbers" up to 1000. You can also enable "Unique numbers only" to ensure no repeats, choose your sort order, and exclude specific numbers.
True randomness comes from physical phenomena like radioactive decay. Pseudo-random numbers are generated by a mathematical algorithm seeded with an unpredictable value (like the current time). For most purposes they are equivalent. This generator uses pseudo-random numbers which are perfectly suitable for games, statistics, giveaways, and general use.
Yes, 100% free. All tools on randomnumbergenerator.app — including the random number generator, coin flip, dice roller, password generator, name picker, and all others — are free to use with no signup, no account, and no limits.