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Open Source Authentication & SSO Providers using Shadcn

A curated collection of the best open source platforms providing authentication, Single Sign-On (SSO), and user management. using Shadcn.

Better Auth

Framework-agnostic authentication for TypeScript applications

Stars
28,732
Forks
2,613
Last commit
5 hours ago

A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Open Source Alternative to:

Clerk

Stack Auth

Open-source authentication and user management platform

Stars
6,810
Forks
518
Last commit
5 hours ago

Stack Auth provides secure authentication, authorization, and user management for developers in just 5 minutes.

Open Source Alternative to:

Clerk

Tesseral

Enterprise-ready B2B auth and user management in minutes

Stars
1,134
Forks
51
Last commit
4 months ago

Complete B2B authentication solution with SSO, role management, API security, and pre-built UI components. Ship enterprise-grade auth in just a few lines of code.

Open Source Alternative to:

Clerk

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Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit