Random Number Generator

Random Number Generator

Free

Free online random number generation tool, supports generating random integers, floating-point numbers, Gaussian distribution random numbers, and random arrays. Provides pseudo-random and cryptographically secure random number modes, supports batch generation, sorting, deduplication and other features, suitable for lucky draws, password generation, scientific computing and other scenarios.

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About Random Number Generator

Free online random number generation tool, supports generating random integers, floating-point numbers, Gaussian distribution random numbers, and random arrays. Provides pseudo-random and cryptographically secure random number modes, supports batch generation, sorting, deduplication and other features, suitable for lucky draws, password generation, scientific computing and other scenarios.

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User Guide

Key Features
  • A random number generator that creates random integers, floating-point numbers, Gaussian (normal) distributed values, and random arrays
  • Offers both pseudo-random and cryptographically secure (crypto.getRandomValues) sources, with configurable range, count, and decimal places. It supports batch generation, sorting, and deduplication, and shows live statistics (min, max, average, sum) — great for draws, cryptography, and scientific computing
How to Use
  1. Open the tool page — no download or installation needed
  2. Pick a type (integer, float, Gaussian, or array) and set the range, count, decimal places, sort, or unique options, then switch between pseudo-random and cryptographically secure modes
  3. Click "Generate" to see the results, then copy a single value, copy all, or download them as a .txt file
Important Notes
  • This tool is completely free and requires no sign-up
  • Everything runs locally in your browser — your data never leaves your device

Frequently Asked Questions

What is Random Number Generator?

Free online random number generation tool, supports generating random integers, floating-point numbers, Gaussian distribution random numbers, and random arrays. Provides pseudo-random and cryptographically secure random number modes, supports batch generation, sorting, deduplication and other features, suitable for lucky draws, password generation, scientific computing and other scenarios.

How do I use Random Number Generator?

Open the tool page — no download or installation needed Pick a type (integer, float, Gaussian, or array) and set the range, count, decimal places, sort, or unique options, then switch between pseudo-random and cryptographically secure modes Click "Generate" to see the results, then copy a single value, copy all, or download them as a .txt file

What should I know before using Random Number Generator?

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Is Random Number Generator free to use?

Yes, Random Number Generator is completely free. No download or installation required — it runs right in your browser.