How to Use the Random Number Generator
Our random number generator creates truly random numbers within your specified range. Set your minimum and maximum values, choose how many numbers you want to generate, and decide whether to allow duplicates. Perfect for games, simulations, random selection, and statistical sampling.
Generator Features
- Custom Range: Set any minimum and maximum values
- Multiple Numbers: Generate up to 1000 random numbers at once
- Unique Option: Generate non-repeating numbers for fair selection
- One-Click Copy: Easily copy generated numbers to clipboard
Common Uses for Random Numbers
Random number generators are essential tools for many applications:
- Gaming: Dice rolls, card shuffling, loot drops
- Contests: Winner selection, raffle drawings, lottery numbers
- Statistics: Random sampling, Monte Carlo simulations
- Security: Password generation, cryptographic nonces
- Testing: Generate test data, stress testing
- Decision Making: Random selection when choosing between options
Understanding Randomness
Our generator uses JavaScript's built-in Math.random() function, which produces pseudo-random numbers suitable for most non-cryptographic purposes:
- Each number in the range has equal probability of being selected
- Results are unpredictable and cannot be reproduced
- Perfect for games, simulations, and general random selection
- For cryptographic security, use Web Crypto API instead
Unique vs. Duplicate Numbers
Allow Duplicates: Each generation is independent, so the same number can appear multiple times. Use this for simulating dice rolls or any scenario where repetition is natural.
Unique Numbers Only: Ensures each number appears only once, like drawing lottery balls without replacement. Note: You cannot generate more unique numbers than exist in your range.