Random Generator

A client-side web tool for generating random strings, UUIDs, passwords, and more with ease.

100% Client-side - No data sent to server!

Features

• ✅ Generate Alphabetic strings (A-Z, a-z)
• ✅ Generate Numeric strings (0-9)
• ✅ Generate Alphanumeric strings
• ✅ Generate strings with Special Characters
• ✅ Generate secure Passwords (guaranteed mix of upper, lower, numbers, symbols)
• ✅ Generate UUID v4
• ✅ Generate Hexadecimal strings
• ✅ Generate Custom strings (use your own character set)
• ✅ Configurable string length (1-1000)
• ✅ Generate multiple strings at once (1-100)
• ✅ Multiple separator options (newline, comma, semicolon, space, tab)
• ✅ Copy to clipboard
• ✅ Download results as .txt
• ✅ Dark/Light mode toggle
• ✅ Responsive design
• ✅ Cryptographically secure random generation

Generator Types

Type	Description	Example
Alphabetic	Letters only (A-Z, a-z)	AbCdEfGhIjKl
Numeric	Numbers only (0-9)	4827163950
Alphanumeric	Letters and numbers	A1b2C3d4E5f6
Special Chars	Letters, numbers, and symbols	Ab1@Cd2#Ef3$
Password	Guaranteed strong password	K7$mNp2&Qr9!
UUID	UUID v4 format	550e8400-e29b-41d4-a716-446655440000
Hexadecimal	Hex characters (0-9, A-F)	4A7F2B9C3E1D
Custom	Your own character set	Based on your input

Usage

Option 1: Open directly in browser

Simply open public/index.html in your web browser.

Option 2: Use a local server

# Using Python
cd public
python -m http.server 8000

# Using Node.js
npx serve public

# Using PHP
php -S localhost:8000 -t public

Then open http://localhost:8000 in your browser.

Option 3: Deploy to Firebase Hosting

firebase deploy

Project Structure

random-generator/
├── public/
│   ├── index.html      # Main HTML file
│   ├── 404.html        # 404 page
│   ├── favicon.svg     # Favicon
│   ├── css/
│   │   └── style.css   # Styles
│   └── js/
│       └── app.js      # Main JavaScript logic
├── firebase.json       # Firebase config (if applicable)
└── README.md           # Documentation

Technology

• Pure HTML, CSS, JavaScript (no frameworks)
• Web Crypto API for secure random generation
• No external dependencies
• Works offline

Security

This generator uses the Web Crypto API (crypto.getRandomValues() and crypto.randomUUID()) for cryptographically secure random number generation, making it suitable for generating passwords and other security-sensitive strings.

License

MIT License

Contributing

Contributions are welcome! Feel free to submit a Pull Request.

Demo

https://herusdianto.github.io/random-generator/