Auth.js

Auth.js is a comprehensive, free and open-source authentication solution designed for modern web applications. This powerful library provides seamless integration across multiple frameworks including Next.js, SvelteKit, Express, and Qwik.

Key Features:

• 50+ OAuth providers including GitHub, Google, Facebook, and more
• Framework-agnostic design with dedicated packages for popular frameworks
• Type-safe implementation with full TypeScript support
• Zero-config setup for quick implementation
• Secure by default with built-in CSRF protection and secure cookies

The library offers simple integration with just a few lines of code. Whether you're building a Next.js app, SvelteKit project, Express server, or Qwik application, Auth.js provides consistent APIs and excellent developer experience.

Benefits:

• Reduce development time with pre-built authentication flows
• Maintain security best practices without complexity
• Scale easily with enterprise-grade authentication
• Access comprehensive documentation and active community support

Perfect for developers who need reliable authentication without the overhead of building custom solutions from scratch.