Generate strong random passwords locally in your browser, with entropy scoring.
A password is built by randomly selecting characters from the pool you enable (lowercase always on, plus optional uppercase, numbers, and symbols). Longer passwords and larger character pools mean more entropy — a measure of how hard the password is to guess.
Password entropy
Entropy (bits) = Length × log₂(charset size)
Total possible passwords
Possible passwords = charset size ^ length
Aim for at least 12–16 characters with a mix of character types. Longer is stronger; 16+ with symbols is a solid default for important accounts.
No. Generation happens entirely in your browser and nothing is sent to or saved on any server.