DotNetOpenAuth - DotNetOpenAuth is a free-to-use compiled library that comes with the real support to your site visitor to login with the help of openIDs via getting control of the ASP.NET control onto the page.
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
ASP.NET SAML - ASP.NET SAML is an open-source authentication utility that has been used for exchanging authentication and authorization data between the channels.
Dashlane - Dashlane is a secure way to bypass tedious logins, forms, and purchases online. Save all of your information and save time in your online transactions.
BugMeNot - BugMeNot is a free Internet service that provides usernames and passwords to allow users to bypass the registration process for websites.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.