Random Number Generator
Generate random numbers within a specified range with options for duplicates, sorting, and quantity. Useful for statistics, simulations, games, and more.
Generated Numbers
Numbers will appear here after generation.
About the Random Number Generator
This Random Number Generator creates sequences of numbers within a specified range. You can customize the minimum and maximum values, the quantity of numbers to generate, and various options to control the output.
How to Use
- Enter the minimum and maximum values to define your range
- Specify how many numbers you want to generate
- Choose your options (allow duplicates, sort numbers, unique only)
- Click "Generate Numbers" to create your random sequence
- Copy or download the results as needed
Features
- Custom Range: Generate numbers between any two values (positive or negative)
- Quantity Control: Create from 1 to 10,000 random numbers at once
- Duplicate Options: Choose whether to allow duplicate numbers or enforce uniqueness
- Sorting: Optionally sort the generated numbers in ascending order
- Visualization: See the distribution of your numbers in a histogram chart
- Export Options: Copy numbers to clipboard or download as a text file
Applications
Random number generation is useful for many purposes:
- Statistics & Research: Create random samples for experiments and simulations
- Games & Contests: Generate lottery numbers, bingo cards, or game elements
- Education: Create random math problems or examples
- Programming: Test algorithms with random inputs
- Decision Making: Randomly select items or make unbiased choices
Technical Details
This calculator uses the cryptographically secure Web Crypto API to generate high-quality random numbers. The algorithm ensures:
- Uniform distribution across the specified range
- True randomness (not pseudo-random)
- Secure generation suitable for sensitive applications
Number Generation Algorithm
The generator follows these steps:
- Calculate the range size (max - min + 1)
- If duplicates are allowed, generate each number independently
- If unique numbers are required, create a pool of possible numbers and shuffle them
- Apply sorting if requested
- Format the output according to user preferences