Credential Security Tool

Secure Password Generator

Generates passwords and passphrases using crypto.getRandomValues() — the browser's cryptographically secure random number generator. No server, no logging, nothing transmitted.

Random Password

A–Z a–z 0–9 !@#$

Length 20

Passphrase

Words 5

Separator

Generated using crypto.getRandomValues() — the browser's cryptographically secure random number generator.

Understanding entropy

Entropy measures how unpredictable a password is. Each bit doubles the number of possible passwords an attacker must try. 40 bits = roughly 1 trillion combinations. 80 bits = immune to brute force with current technology. 128 bits = cryptographically strong for any purpose.