Random Number Generator

Random Number Generator — Any Range, Unique or Repeating

Whether you are running a giveaway, picking lottery numbers, sampling data, or settling a decision, this free random number generator gives you exactly what you need. Set any range, choose how many numbers to generate, and optionally require them to be unique — all instantly in your browser, with no signup and nothing sent anywhere.

Custom Range and Bulk Generation

Define your own minimum and maximum, from small ranges to very large ones, and generate anywhere from a single number to a thousand at once. Bulk generation is useful for creating sample sets, assigning random IDs, or producing test data quickly, while a single pick is perfect for a quick decision or a draw.

Unique Numbers for Fair Draws

The unique option guarantees no repeats, which matters for anything where the same number should not appear twice — raffle draws, lottery selections, random seating, or picking a set of distinct winners. The tool checks that your range is large enough for the number of unique picks requested, so you never get an impossible request.

Common Uses

People reach for a random number generator to run fair giveaways and contests, pick lottery or raffle numbers, choose a random winner or participant, sample rows from a dataset, generate test values, or simply make an unbiased choice when they cannot decide. It removes human bias from the selection, which is the whole point.

Free, Private, and Instant

No cost, no account, no limits. Everything runs locally in your browser, so it is private and works offline once loaded. Explore our other randomizer tools, including a dice roller, coin flip, and list shuffler, for every kind of chance-based decision.