Better Auth.

About Better Auth

Better Auth is a framework-agnostic authentication and authorization framework for TypeScript. It brings identity features into an application’s codebase, giving developers a composable way to add sign-up, login, sessions, account management, social sign-on, organizations, and access control without assembling every authentication workflow from scratch. The framework includes built-in support for email and password authentication, social providers, email verification, password reset, session management, and database-backed user data. Its plugin ecosystem extends the core with capabilities such as two-factor authentication, passkeys, magic links, email OTP, API keys, multi-session support, organization management, and other specialized identity flows. Better Auth is designed to work across modern JavaScript and TypeScript stacks. It provides server and client APIs, framework integrations, and adapters for common application architectures, including applications built with Next.js and other frameworks that use standard Request and Response objects. The project emphasizes type safety, allowing developers to infer user and session types from their authentication configuration. Because authentication lives in the application code, teams can keep identity configuration under version control, review changes in pull requests, and customize behavior with normal server-side logic. Better Auth also provides tooling for creating or migrating the database schema required by the framework, reducing the amount of manual setup needed during integration. For multi-tenant products, organization features can support teams, roles, invitations, membership, and access rules. Additional plugins and integrations can help connect authentication to enterprise SSO, payments, security controls, AI agents, and other application needs. Developers should check the current documentation and compatibility guidance for the version they install because setup details, adapters, and plugin APIs can evolve. Better Auth is a strong fit for TypeScript teams that want an extensible, code-first identity layer with built-in features and a growing plugin ecosystem. It offers more control over application-owned authentication flows than a purely hosted identity service, while still providing reusable primitives for common security and account-management requirements.