Apps similar to humanID include OpenID, which is free and open source. Other options are OAuth, Portier, Twitter OAuth and Facebook Login. In total there are seven Authentication Protocols like humanID for self-hosting and the web.
OpenID is an easy and safe way for people to reuse an existing account and user profile from an identity provider, for example Apple, Google, or Microsoft to sign-in to any OpenID-enabled applications and websites without creating a new registration and password.
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An open protocol to allow secure authorization in a simple and standard method from web, mobile and desktop applications.
Portier (pronounced "Por-tee-ay") is a self-hostable login service that you can use instead of passwords. Portier sits between your website and third-party services like Google Sign-In to provide your users the fastest and easiest login experience, without ever needing...
OAuth 2.0 Authorization Code Flow with PKCE allows you to authenticate on behalf of another user with have more control over an application's scopes and improves authorization flows across multiple devices.
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A secure, fast, and convenient way for users to log into your app, and for your app to ask for permissions to access data.
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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 entering your domain name in the login form on websites that support IndieAuth.
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