Math
Random Number Generator
Generate random integers within any range. Choose how many numbers and optionally require all unique values.
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Frequently Asked Questions
Quick answers to common questions
How random are the numbers?+
Numbers are generated using JavaScript Math.random(), which is pseudo-random and suitable for games, simulations, and casual use — not cryptography.
What does unique numbers mean?+
When enabled, no duplicate numbers appear in the result set. The range must be large enough for the requested count.
What is the maximum count?+
You can generate up to 1,000 random numbers at once.
Is this truly random?+
For cryptographic security, use a dedicated CSPRNG. This tool is for everyday random selection.