SimplePassword is described as 'Password generator. You supply the website and a master password, it generates you a password for that website. You remember only a single master password and can generate different passwords for each website you visit' and is an website in the security & privacy category. There are more than 100 alternatives to SimplePassword, not only websites but also apps for a variety of platforms, including Windows, Mac, Android and iPhone apps. The best SimplePassword alternative is Bitwarden, which is both free and Open Source. Other great sites and apps similar to SimplePassword are KeePassXC, KeePass, LastPass and 1Password.