Random Number Generator

Generate random integers or floats in a range — optionally unique, optionally sorted. Secure mode uses the Web Crypto API for cryptographically strong randomness. Everything runs in your browser.

Type

Min

Max

Count

Unique (no duplicates) Secure (Web Crypto)

Sort

Decimals

Separator

Output

Secure mode draws from crypto.getRandomValues with rejection sampling to avoid modulo bias. Generated on demand — press Generate.