Random Number Generator

A random number generator is a tool that produces random integers within a specified range. Random numbers are fundamental in many fields including statistics, gaming, simulations, cryptography, and everyday decision-making. Whether you need to pick lottery numbers, create randomized test data, or simulate dice rolls, this tool provides fast and reliable random number generation.

Our free online random number generator allows you to specify the minimum and maximum values, choose how many numbers to generate (up to 100), control whether duplicate values are allowed, and optionally sort the results. The generator uses JavaScript's Math.random() function to produce pseudo-random numbers with uniform distribution across the specified range.

When duplicates are disabled, the generator uses a Fisher-Yates shuffle algorithm to ensure an unbiased selection of unique numbers from the range. This is mathematically equivalent to drawing numbers from a hat without replacement, making it ideal for raffles, random sampling, and creating unique sequences.

All number generation happens entirely in your browser with no server communication. Generate as many random numbers as you need, instantly and privately.

1. Set the range — Enter the minimum and maximum values for your random numbers.
2. Set the count — Choose how many random numbers you want to generate (1 to 100).
3. Configure options — Check "Allow duplicates" if repeated values are acceptable. Check "Sort results" to get the numbers in ascending order.
4. Click Generate — Press the Generate Numbers button to produce your random numbers.
5. Copy results — Click Copy All to copy all generated numbers to your clipboard as a comma-separated list.