Stack Auth
ActiveThe open-source Auth0 alternative
About
Stack is the open-source authN, authZ, and user management platform. We build for devs who want to iterate quickly, offering both managed auth and self-hosting. You can set it up in one minute and scale with the project as it grows. Stack was built by repeat founders with strong technical backgrounds. Check out our GitHub: https://github.com/stack-auth/stack
Founders · 2
I build user authentication @ Stack Auth. Previously 2x YC, ETH Zurich, Google, Jane Street, Bloomberg. @konstiwohlwend on X. https://n2d4.github.io 👋
Building the best user login/management experience for developers, 100% open-source!
Launch
The open-source alternative to Auth0, Clerk, and Firebase Auth. Fully managed & supports authorization.
Stack Auth provides an open-source, self-hosted authentication, authorization, and user-management platform for B2B apps, with a cloud option. It offers OAuth token management, multi-tenancy, React components for Next.js, RBAC, webhooks, and customizable emails for sign-up flows.
Formerly “Stack”
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