Random number generator
Cryptographically random numbers in any range you set. Generated here, never sent anywhere.
Runs on your device - nothing is uploaded.
HOW IT WORKS
1
Set your range
Any min and max - negatives and big numbers work.
2
Choose count and repeats
One number or up to 1000 at once, with optional no-repeats.
3
Generate
Your browser's crypto-grade random source picks the numbers.
Questions
How random is it?+
It uses crypto.getRandomValues, the same cryptographic random source browsers use for security keys - not the basic Math.random.
Do the numbers leave my device?+
No. Generation happens in this tab; nothing is sent anywhere.