Random Number Generator

Picking a raffle winner, deciding who goes first in a game, or generating a set of sample data for testing — a genuinely random number, rather than one someone consciously or unconsciously biases, settles it fairly. This tool generates one or more random numbers within any range you set.

What the "no duplicate numbers" option changes

By default, each generated number is picked independently, so the same value can appear more than once in the results (like rolling a die multiple times). Checking "No duplicate numbers" instead draws from the range without replacement, guaranteeing every number in the result is unique — useful for things like drawing multiple distinct raffle winners or shuffling a set of unique IDs.

Everyday uses for a random number generator

Picking a winner from a numbered list of raffle or giveaway entries fairly and transparently. Deciding turn order for a game or activity among a group of people. Generating sample or placeholder numeric data for testing a spreadsheet, form, or piece of software. Randomly selecting a subset of items from a numbered list — like choosing 5 random participants out of 50 for a survey.

Frequently Asked Questions

Is this random enough for something like a real giveaway or contest? For casual or informal purposes, yes — the underlying randomness is generated by the browser's standard random number function, suitable for everyday fairness; for legally regulated contests with strict compliance requirements, check what randomness standard your specific jurisdiction requires.

What happens if I ask for more unique numbers than fit in my range? The tool will show an error, since it's mathematically impossible to generate more unique numbers than exist within a given range — widen the range or reduce the count requested.

Are the generated numbers saved anywhere? No — numbers are generated entirely in your browser using JavaScript; nothing is stored or transmitted.