Random Number Generator — Free Online Tool
Generate random numbers within any range, with or without duplicates.
About Random Number Generator
The Random Number Generator produces one or many random whole numbers within a minimum and maximum range you define. It is useful for lotteries, sampling, games, picking winners, and any situation that calls for unbiased numeric selection.
You can choose whether duplicates are allowed, which lets you either draw repeatable values or generate a set of unique numbers like lottery picks. All numbers come from your browser secure random source, ensuring fair and evenly distributed results.
How to Use Random Number Generator
- Set the minimum and maximum values for your range.
- Choose how many numbers you want to generate.
- Decide whether to allow duplicate values.
- Click Generate, then copy the results.
Key Features
Custom minimum and maximum range
Generate single or multiple numbers at once
Option to allow or forbid duplicates
Secure, evenly distributed randomness
One-click copy of all results
Frequently Asked Questions
Can I generate numbers without duplicates?
Yes. Uncheck the allow duplicates option to get a set of unique numbers, which is handy for lottery-style draws.
What if I ask for more unique numbers than the range allows?
The tool will warn you, since it cannot produce more unique values than there are numbers in the range. Widen the range or allow duplicates.
Does it matter if I put the larger number first?
No. If the minimum is greater than the maximum, the tool swaps them automatically so the range still works.
Are the numbers truly random?
They are drawn from your browser cryptographically secure random generator, giving each value in the range an equal chance.