Password Generator
Generate strong passwords or memorable passphrases. Everything is computed in your browser using crypto.getRandomValues — nothing leaves your device.
About the password & passphrase
A secure password and passphrase generator that runs entirely in your browser. Create strong random passwords with full control over length and character types, or memorable multi-word passphrases, using the cryptographically-secure Web Crypto API — with a built-in strength meter.
- Cryptographically-secure randomness (Web Crypto API)
- Password mode: length slider and character-type toggles
- Passphrase mode: memorable multi-word phrases
- Entropy-based strength meter and one-click copy
- Nothing is transmitted, stored or logged — 100% local
Are these passwords safe to use?+
Yes. Passwords are generated locally using the browser's cryptographically-secure random generator and are never sent anywhere, so no one else — including this site — ever sees them.
What makes a strong password?+
Length and unpredictability. Aim for 16 or more characters mixing upper- and lower-case letters, numbers and symbols; the built-in strength meter shows how strong your choice is.
What is a passphrase and is it more secure?+
A passphrase strings several random words together (for example 'river-copper-lantern-42'). It's easier to remember and can be very strong when it contains enough words.