PasswordShaker by Julian Fietkau

PasswordShaker is a hash-based password generator (an idea also known as "deterministic password manager"). It generates site-specific passwords for you based on a single master password that you supply. As such it does not employ any sort of password database, and neither does it have to keep track of the sites that you use it on.

The name pays homage to PasswordMaker, another password generator browser add-on that PasswordShaker's author personally used for many years. The creation of PasswordShaker was inspired by PasswordMaker's capabilities and spurred on by its technical obsolescence. PasswordShaker offers a PasswordMaker compatibility mode to support users who are migrating from it.