Random Number Generator
Generate random numbers instantly within specified ranges
A simple tool to generate random integers within your specified range. Perfect for games, lotteries, sampling, and various other applications where you need random numbers.
How to Use
1
Enter the minimum and maximum values
2
Click the 'Generate Number' button
3
A random number within the specified range will be displayed
4
Click the button again to generate a new random number
Key Features
Random number generation within any integer range
Real-time result display
Error handling and validation
Responsive design
Smooth animations
乱数の範囲設定
範囲を設定して乱数を生成してください
Frequently Asked Questions
Random integers are generated with equal probability within the specified minimum and maximum range using JavaScript's Math.random() function with a pseudo-random algorithm.
The minimum value must be less than the maximum value. While technically very large values are possible, we recommend staying within reasonable ranges due to JavaScript's number precision limitations.
Yes, due to the nature of randomness, the same number can be generated consecutively. This is normal behavior and demonstrates true randomness.
No, the numbers generated by this tool are not cryptographically secure. Do not use them for passwords, encryption keys, or other security purposes. They're suitable for games and general applications.
Yes, you can set a negative minimum value to generate random numbers that include negative values. For example, you can generate numbers from -100 to 100.