Random Number Generator
Generate one or many cryptographically secure random numbers in any range. Sort, unique, and bulk options included.
How to Use
- Set your minimum and maximum range values.
- Enter how many numbers you want — set to 1 for a single large display.
- Toggle No repeats to ensure unique values, and Sort to order results numerically.
- Click Generate. Single numbers show as a large display; multiple numbers appear in a list.
What Is It?
A random number generator picks numbers that have no predictable pattern. Our tool uses the Web Crypto API (crypto.getRandomValues) — the same source of randomness used in cryptography — rather than the weaker Math.random(). This makes it suitable for lottery draws, fair sampling, game mechanics, and security applications.
Why Use Our Tool?
- ✓Cryptographic randomness via Web Crypto API — not Math.random().
- ✓Generate up to 1,000 numbers in one click.
- ✓No-repeat mode for lottery-style unique draws.
- ✓Copy results to clipboard in one click.
Frequently Asked Questions
- Yes. The generator uses window.crypto.getRandomValues — a cryptographically secure random number generator built into all modern browsers, not the weaker Math.random().
- When enabled, each number in the set will be different — no repeats. Useful for lottery picks or random sampling.
- You can generate up to 1,000 numbers per click within any range supported by JavaScript integers.
- Yes, completely free.