Portier - An email-based, #passwordless authentication service
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 a new password.
Best of all, Portier works for everyone, because it can fall back to traditional “click the link” methods of #email confirmation.
Portier is inspired by many projects and considers itself a spiritual successor to Mozilla Persona.