The Best 11 Persona Alternatives

  • OpenID

    OpenID is an open standard that describes how users can be authenticated in a decentralized manner, eliminating the need for services to provide their own ad hoc systems and allowing users to consolidate their digital identities.

    Free Open Source Web

  • OAuth

    OAuth is an open standard for authorization. It allows users to share their private resources (e.g.

    Free Open Source Web

  • Portier

    Portier (pronounced "Por-tee-ay") is a self-hostable login service that you can use instead of passwords.

    Free Open Source Web Self-Hosted

  • IndieAuth

    IndieAuth is a way to use your own domain name to sign in to websites. It works by linking your website to authentication providers such as Twitter or Google, then...

    Free Open Source Web Self-Hosted

  • Twitter connect

    Place a button on your site or application which allows Twitter users to enjoy the benefits of a registered user account in as little as one click. Works on websites...

    Free Web

  • Facebook Connect

    Facebook Connect is a set of APIs from Facebook that enable Facebook members to log onto third-party websites, applications, mobile devices and gaming systems with their...

    Free Web

  • Centrify

    Unified Identity Services across data center, cloud and mobile — one single login for users and one unified identity infrastructure for IT.

    Commercial iPhone iPad