Password Strength Estimator from Dropbox

Github repositories

• dropbox/zxcvbn

  zxcvbn is a password strength estimator that provides a more secure, flexible, and usable alternative to traditional password composition policies. It recognizes and weighs common passwords, names, words, and patterns to estimate password complexity. It offers better security by avoiding weak passwords and disallowing overly complex ones. It allows various password styles to flourish and provides instant feedback to guide users in creating less guessable passwords. zxcvbn is used by Dropbox and has been ported to several programming languages. It can be easily installed and integrated into different frameworks and platforms.