100% Free · 100% In-Browser · Nothing Ever Sent to a Server

Secure Password Generator

Cryptographically secure, truly random passwords and passphrases — every character is chosen using the browser's Web Crypto API, the same source used for encryption keys, not a predictable pseudo-random generator.

Strength: —

Length 16

Uppercase (A-Z) Lowercase (a-z) Numbers (0-9) Symbols (!@#$...)

Exclude ambiguous characters (l, I, 1, O, 0) Avoid repeating characters

Exclude specific characters (optional)

Generate multiple at once 5

Frequently Asked Questions

Are these passwords truly random?

Yes. Every character is chosen using crypto.getRandomValues(), the browser's cryptographically secure random number generator — the same source used to generate encryption keys — not the predictable Math.random() function.

Are my passwords sent anywhere or stored?

No. Every password is generated entirely in your browser and never transmitted to a server or saved anywhere. Closing or refreshing the page clears everything.

What's the difference between Password and Passphrase mode?

Password mode generates a random string of characters. Passphrase mode combines several random dictionary words (like "correct-horse-battery-staple"), which can be easier to type and remember while still being very hard to guess, given enough words.