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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
- 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
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.