Random Number Generator
Generate random numbers within any range. Options for unique numbers, multiple results, and custom constraints.
Runs in your browser. No data leaves your device.
Frequently Asked Questions
How does the Random Number Generator work?
The tool computes Math.floor(Math.random() * (max - min + 1)) + min for each requested number, producing uniform integers across your range. When "no duplicates" is enabled, it collects values into a Set, re-rolling on collisions until the requested count is reached. Up to 1,000 numbers can be generated per batch.
Is the random number generator truly random?
Yes. The results are unpredictable and unbiased within your specified range.
Can I generate multiple random numbers at once?
Yes. Set how many numbers you need and whether they should be unique (no repeats) or allow duplicates. All results are generated in a single batch.
Can I use decimals or only whole numbers?
The generator supports both whole numbers and decimal precision. Choose integer mode for lottery-style picks or decimal mode for more granular random values.