A password manager is a software in which you can store all your passwords. It basically stores all your data in some file or database, and keeps that encrypted. All the passwords can be accessed be one single master password. This ensures that you just need to remember one password, and using that you can access all your passwords.
Waltz is a free password manager extension for Chrome which works with Clef mobile app (iOS and Android) to log you in without a password on a website.→