Random Number Generator

What is a Random Number Generator?

Generate cryptographically random numbers within custom Min and Max ranges. Supports integer or decimal numbers, multi-number batch generation, sorting, and unique non-repeating value toggles.

Why Use This Tool?

  • Giveaways & Raffles: Pick unbiased random winner numbers for contests and raffles.
  • Gaming & Simulation: Generate random dice rolls, numbers, or statistical sampling datasets.
  • Security & Cryptography: Uses browser Web Crypto API for secure random numbers.

How to Use

  1. Set Min Number (e.g. `1`) and Max Number (e.g. `100`).
  2. Set How Many Numbers to generate (e.g. `5`).
  3. Toggle "Unique Values Only" and click Generate.

Real Working Example

Input:

Min: 1 | Max: 100 | Count: 5 | Unique: Yes

Output Result:

Random Numbers Generated: 14, 42, 68, 77, 91

Important Technical Details & Formulas

  • crypto.getRandomValues Engine: Uses browser Web Crypto API for cryptographically secure pseudo-random number generation (CSPRNG).
  • Fisher-Yates Shuffle: Ensures unbiased unique non-repeating random selection.
  • 100% Local Execution: Zero network overhead.

Related Mathematics & Financial Tools

Frequently Asked Questions

Is this random number generator cryptographically secure?

Yes, it uses the browser crypto.getRandomValues API rather than basic Math.random().

Can I generate unique non-repeating numbers?

Yes, toggle "Unique Values Only" to prevent duplicate numbers.

Can I generate decimal random numbers?

Yes, toggle decimal mode and set desired decimal precision.

Is it free?

Yes, 100% free.

How many random numbers can I generate at once?

Generate up to 10,000 random numbers in a single click.