Random Number Generator
Generate random numbers within a range. Supports multiple numbers and unique mode.
Key Features
- Generate one or many random numbers within any custom minimum and maximum range.
- Unique mode ensures no number is repeated — ideal for lotteries and random sampling.
- Uses cryptographically strong randomness via the browser's Web Crypto API.
- Generate thousands of numbers at once and copy them to your clipboard.
- Supports integer and decimal number generation.
- All generation happens locally — no numbers are transmitted to any server.
Frequently Asked Questions
How do I pick a random number between 1 and 100?
Set the minimum to 1 and the maximum to 100, then click Generate. The tool uses your device's cryptographically secure random number generator.
Is this random number generator truly random?
It uses the Web Crypto API (window.crypto.getRandomValues), which provides cryptographically secure pseudo-random numbers from your operating system's entropy pool.
Can I use this to pick lottery numbers?
Yes. Enable unique mode, set your range and quantity to match your lottery's requirements. Note that all draws are independent — past results do not affect future ones.