Random Number Generator
Set the minimum and maximum values, choose how many numbers you want, and press the draw button.
Random Number Generator – Generate random numbers from your desired range
The Random Number Generator produces completely random integers from your desired number range. You can choose how many numbers to generate and whether you want them unique.
What is the random number generator used for?
- Draws and competitions – Draw a winner from a numbered group of participants
- Gaming – Random numbers for games and simulations
- Team division – Draw players into teams neutrally
- Study testing – Draw random tasks or questions
- Statistical sampling – Select a random sample from a larger set
- Decision making – When it's hard to choose between options
How does randomness work?
The generator uses the browser's built-in Math.random() function, which produces pseudorandom numbers. This is sufficient for most practical purposes, but not for cryptographic security.
For generating unique numbers, the Fisher-Yates shuffle algorithm is used, which ensures an even distribution for all possible combinations.
Examples
| Use Case | Min | Max | Count |
|---|---|---|---|
| One random number | 1 | 100 | 1 |
| Dice roll | 1 | 6 | 1 |
| Coin (0=heads, 1=tails) | 0 | 1 | 1 |
| 5 unique numbers from 30 | 1 | 30 | 5 |
| Team division (10 players, 2 teams) | 1 | 10 | 5 |
See also
- Lottery Number Generator – Generate lottery numbers
- Dice Generator – Roll virtual dice