Password & Passphrase Generator
Generated locally in your browser using the Web Crypto API. Nothing is ever stored or transmitted.
correct-horse-battery-staple
Very strong
~161 bits of entropy
Uppercase
A–Z
Lowercase
a–z
Numbers
0–9
Symbols
!@#$%^&*...
Exclude ambiguous
0 O 1 l I
Recent (this session only)
Generated passwords will appear here.
Capitalize words
Correct-Horse-Battery
Append a number
...staple-47
Append a symbol
...staple-47!
Recent (this session only)
Generated passphrases will appear here.
01
True randomness
Uses the browser's crypto.getRandomValues() API, not Math.random(), for cryptographically secure output.
02
Entropy, not guesswork
The strength meter is calculated from actual character-pool size or word-list size — the same math attackers use to estimate crack time.
03
Passphrases you can recall
Four random dictionary words are both easier to remember and, at this length, harder to brute-force than a typical 8-character password.