Random Number Generator
Generate random numbers, passwords, strings, and UUIDs
Random Generator
Choose generator type and configure options
Generated Result
Your generated random data
About Random Generators
Generator Types
- • Numbers: Generate random numbers within a specified range
- • Password: Generate secure passwords with customizable length and symbols
- • String: Generate random strings with custom character sets
- • UUID: Generate universally unique identifiers
Features
- • Cryptographically secure random generation
- • Option to allow or prevent duplicates
- • Statistical analysis for number generation
- • Copy to clipboard functionality
Use Cases
- • Random sampling and testing
- • Password generation for accounts
- • Unique identifier generation
- • Random data for development
Frequently Asked Questions
Are the random numbers truly random?▾
The generator uses the browser's cryptographic random source (crypto.getRandomValues), which is suitable for most uses including password generation and sampling.
What is a UUID?▾
A UUID (Universally Unique Identifier) is a 128-bit value used to uniquely identify items. Version 4 UUIDs are randomly generated and have an extremely low chance of collision.
How long should a secure password be?▾
At least 12–16 characters, using a mix of letters, numbers, and symbols. Longer passphrases are generally more secure and easier to remember than complex short passwords.
Can I exclude duplicates from a random number set?▾
Yes. Enable the "unique" option to generate a set of random numbers with no repeats — useful for drawings, shuffling, or picking unique samples.