Password strength checker
Measure the real entropy of a password and how long it would take to crack.
100% local
Password strength checker
Password strength is not about exotic symbols but about unpredictability, measured in bits of entropy. “P@ssw0rd!” looks complex and falls in seconds, because common substitutions are the first thing attackers try. Four or five random words strung together easily exceed 60 bits while staying memorable. The password typed here never leaves your browser.