Better-auth

Better Auth is a batteries-included authentication solution designed specifically for modern TypeScript applications. It eliminates the complexity of building secure authentication systems from scratch by providing a comprehensive framework that handles everything from basic email/password flows to enterprise-grade single sign-on and OAuth integrations.

What sets this framework apart is its developer-first approach with full type safety throughout the authentication flow. Unlike traditional authentication libraries that require extensive configuration, Better Auth offers sensible defaults while remaining highly customizable. It seamlessly integrates with popular identity providers, supports multiple authentication strategies, and includes built-in session management with security best practices baked in.

The framework includes native integrations with payment platforms like Stripe, making it ideal for SaaS applications that need to tie authentication to subscription management. With support for OIDC and OAuth2 protocols, you can implement social logins, enterprise SSO, and custom identity providers without wrestling with complex specifications.

Whether you're building a startup MVP or an enterprise application, Better Auth provides the flexibility to start simple and scale to complex IAM requirements. The TypeScript-native architecture ensures compile-time safety, reducing authentication-related bugs and improving developer productivity across your entire stack.