About Strong Password Generator

Strong Password Generator is a free tool that creates cryptographically secure, random passwords entirely inside your browser using the Web Crypto API (crypto.getRandomValues()). Nothing you generate is ever sent to a server, logged, or stored remotely.

We built it because everyone deserves a fast, private way to create strong passwords without trusting a third party with their secrets. The tool is intentionally simple: pick a length, choose which character types to include, and generate.

How it works

Each password is seeded with at least one character from every selected character class, filled to your chosen length from the combined set, then shuffled with a cryptographically secure Fisher–Yates shuffle. All randomness comes from your browser's secure random number generator — never Math.random().

Standards we follow

Our recommendations align with NIST SP 800-63B and the OWASP Authentication Cheat Sheet.