Stack Auth

Stack is an open-source, self-hostable, and highly customizable authentication and user management system.

We provide frontend and backend libraries for Next.js, React, and JavaScript. You can set it up in one minute and scale with the project as it grows. Think of it as Supabase Auth or next-auth, but better.

Features

• Composable React components & hooks
• OAuth (Google, Facebook, GitHub, etc.)
• Email and password authentication (with email verification and password reset)
• Easy to set up with proxied providers (no need to sign up and create OAuth endpoints yourself on all the providers)
• User management & analytics
• User-associated metadata with client-/server-specific permissions
• Out-of-the-box Dark/Light mode support
• Supports switching out the underlying UI library, support MUI Joy out of the box
• 100% open-source!