1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
TypingDNA Authenticator - 2FA codes in your browser, secured by the way you type
Password-Generator.xyz - Generate Random Strong Password Online
Cotter - One-click phone number login and checkout
Buttercup - Free and open source password manager for Windows/Mac/Linux
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.