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Our free Random Number Generator lets you generate any quantity of random numbers within a custom range. Perfect for lotteries, games, statistical sampling, classroom activities, or any situation where you need unbiased random numbers. Set your minimum, maximum, and count, then click Generate. Enable unique mode to ensure no number repeats — ideal for lottery picks or random sampling.
Our generator uses JavaScript's Math.random() which is a pseudorandom number generator (PRNG). For most purposes this is perfectly adequate, but it's not suitable for cryptographic applications.
You can generate up to 100 numbers at once. If you need more, simply click Regenerate multiple times.
Unique mode ensures that each generated number appears only once. This is essential for things like lottery draws where you can't have duplicate picks.
Yes! Simply set a negative minimum value. For example, set min to -100 and max to 100 to generate numbers in that range.
This tool generates integers only. For decimal random numbers, divide your result by a power of 10 after generation.
The tool will show an error explaining that you can't generate more unique numbers than exist in the range.
This tool is not designed for password generation. Use our dedicated Password Generator tool for secure passwords.
It's suitable for basic random sampling. For rigorous scientific research requiring true randomness, consider dedicated statistical software.