Random Number Generator
Generate random integers within a configurable inclusive minimum and maximum range using cryptographically secure randomness.
What is Random Number Generator?
Generate random whole numbers within a range you define. Set the minimum and maximum integer values, choose how many numbers to generate, and create up to 100 values in a single batch. Repeated numbers are allowed.
How to use
- Enter the minimum integer value.
- Enter the maximum integer value.
- Choose how many values to generate, from 1 to 100.
- Click Generate to create the random numbers.
- Copy the generated values if needed.
Features
- Custom minimum and maximum values
- Inclusive integer range
- Batch generation of 1 to 100 values
- Cryptographically secure random number generation
- Unbiased selection across the supported range
- One-click regeneration
- Copy generated numbers
- Input validation with error messages
Common Use Cases
- Random test data
- Dice and game simulations
- Random selections
- Programming experiments
- Statistical exercises
- Development and testing
Example
Minimum: 1 Maximum: 100 Number of values: 5
Generated random numbers: 73 18 94 42 61
FAQ
Can I set the minimum and maximum values?
Yes. You can define the minimum and maximum integer values. Both boundaries are included in the generated range.
How many random numbers can I generate?
You can generate from 1 to 100 numbers in a single operation.
Can duplicate numbers appear?
Yes. Each value is generated independently, so the same number can appear more than once in the result.
Is the generator cryptographically secure?
Yes. It uses the Web Crypto API's crypto.getRandomValues() method and rejection sampling to avoid modulo bias. This is suitable for security-sensitive random number generation within the supported integer range.
Are the minimum and maximum values included?
Yes. The generator uses an inclusive range, meaning both the configured minimum and maximum can be returned.
What values can I use for the range?
The minimum and maximum must be safe integers, the minimum cannot exceed the maximum, and the range can contain up to 4,294,967,296 possible integer values.
Missing a feature?
If this tool doesn't cover your use case or is missing functionality, please let me know through the Contact page.
New improvements and features are added based on user feedback.