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NextAuth.js is a complete open-source authentication solution designed specifically for Next.js applications. It provides a simple and customizable authentication system that supports various providers including social logins, databases, and custom credentials. NextAuth.js offers features like JWT sessions, database adapters, and built-in CSRF protection. Its seamless integration with Next.js and support for serverless environments make it a popular choice for developers building modern web applications with Next.js.

Oxi Social Login provides one click login with services like Facebook, Google and many more.

LoginRadius is a cloud based SaaS Customer Identity Access Management platform based in Canada.

Apple Sign-in is an authentication system based on OAuth 2.0 and OpenID Connect, providing a privacy-friendly way for users to sign in to websites and apps. It offers features like "Hide My Email," which creates unique, random email addresses to forward to the user's personal email, enhancing privacy. Apple Sign-in is required for apps that exclusively use third-party sign-in options on Apple platforms. Its strong focus on user privacy and seamless integration with Apple devices make it an attractive option for businesses looking to offer secure and user-friendly authentication.

Google Sign-In is a secure authentication system that enables users to sign in to websites and apps using their Google account credentials. It reduces the burden of account creation and password management for users while providing developers with access to user profile information (with user consent). Google Sign-In offers features like one-tap sign-in, cross-platform integration, and OAuth 2.0 protocol support. Its integration with other Google services and strong security measures make it a popular choice for businesses seeking a reliable and user-friendly authentication solution.