Random Data Generator
Generate passwords, secrets, ports, UUIDs, tokens and other random values — entirely in your browser.
Runs locally in your browser
No accounts, no storage, no tracking
Popular Tools
Password Generator
Generate cryptographically strong passwords with custom length, character sets and presets.
Passphrase Generator
Generate memorable passphrases from a built-in word list with customizable separators.
Hex Generator
Generate random hex strings for keys, tokens and protocol secrets.
UUID Generator
Generate random UUID v4 identifiers.
Port Generator
Generate random port numbers with range selection and common port exclusion.
Color Generator
Generate random colors in hex, RGB and HSL formats.
Read Guides
Password Entropy
Understand what entropy means for passwords, why length beats complexity, and why you should never reuse passwords.
Browser Randomness
How browsers generate random values, the Web Crypto API, and why Math.random is not suitable for secrets.
Random Ports
Port ranges, well-known ports, registered ports, dynamic ports, and why you should avoid conflicts.