Password Generator

Create strong, random passwords with custom length and character sets — uppercase, lowercase, digits and symbols. Generated with a cryptographically secure RNG right in your browser; nothing is stored or sent.

Passwords are generated with crypto.getRandomValues in your browser and are never stored or transmitted.

How it works

Characters are picked from your selected sets using crypto.getRandomValues with rejection sampling to avoid modulo bias. The tool also estimates entropy in bits: length × log2(charset size) — aim for 60+ bits for important accounts.

Frequently asked questions

What makes a password strong?

Length matters most. A 16+ character random password from a large character set is effectively uncrackable by brute force. Use a password manager to store it.

Are these passwords saved anywhere?

No. Passwords are generated locally in your browser and never transmitted, logged or stored.

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