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Auth.js

Authentication for web apps with dozens of ready-made providers.

LibraryOpen source

Authentication library (formerly NextAuth) with social login, email and credentials, sessions and database adapters for several frameworks.

When to use

To add social login and sessions to Next.js and other framework apps, without an external service.

When to avoid

If you need ready-made user management, enterprise SSO and administration; consider Keycloak or a managed service.

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