Random Number Generator
Generate random numbers within any range.
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Frequently Asked Questions
Are these truly random?
These use JavaScript's Math.random(), which is a pseudo-random number generator. Good enough for most purposes but not for cryptographic use.
How do I generate random numbers without duplicates?
Select 'Yes' for Unique Only. This ensures no number appears more than once.
What if I need cryptographically secure random numbers?
Use crypto.getRandomValues() in JavaScript or a dedicated library. This generator is not suitable for security purposes.
Can I generate decimal numbers?
This generator produces integers only. For decimals, generate integers and divide by the desired precision.
What is a pseudo-random number generator?
An algorithm that produces numbers that appear random but are determined by an initial seed value. They pass statistical randomness tests.