Anvil.io is described as 'Identity is the missing link that connects all your users, apps, services, and devices to each other and the rest of the world'. There are five alternatives to Anvil.io for SaaS, Online / Web-based and Self-Hosted solutions. The best alternative is Auth0, which is free. Other great apps like Anvil.io are Ory (Free, Open Source), DID Digital IDentity (Freemium), JustAuthenticateMe (Freemium) and Authpack (Paid).
You can connect any application (written in any language or on any stack) to Auth0 and define its Connection, the method used to authenticate the users of that application: • Custom credentials: username + passwords • Social network logins: Google, Facebook, Twitter...
Ory builds cloud-native authentication (login), authorization (permission), delegation (OAuth2, OpenID Connect), and user management software. You can deploy what you need yourself or use the Ory Cloud Platform and get started in minutes.
DID is the simplest way to add superior authentication to your website. Most of us have too many passwords and we don't like using them. Users not wanting to remember the details of another account is a reason for many failed sign ups particularly for smaller websites.
JustAuthenticateMe offers a simple authentication-as-a-service for your web apps. It uses magic links in emails as a way to verify identity so that neither you nor your users have to worry about passwords.
Authpack provides a complete user and team management API and Dashboard installed with just 8 lines of code and featuring a built-in API explorer for developers to easily perform complex GraphQL operations on data from inside the app.