authentication

Open Source realtime backend in 1 file

The most comprehensive authentication framework

The Single Sign-On Multi-Factor portal for web apps, now OpenID Certified™

Authentication for the Web.

The authentication glue you need.

Flexible authentication solution for Rails with Warden.

Apache Casbin: an authorization library that supports access control models like ACL, RBAC, ABAC.

A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

ZITADEL - Identity infrastructure, simplified for you.

🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD

Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!

🔐 JSON Web Token Authentication for Laravel & Lumen

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

Integrated set of Django applications addressing authentication, registration, account management as well as 3rd party (social) account authentication. 🔁 Mirror of https://codeberg.org/allauth/django-allauth/

The Open Source Firebase Alternative with GraphQL.

Secure, cross-platform Git credential storage with authentication to GitHub, Azure Repos, and other popular Git hosting services.

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.

The tiniest OpenID Certified™ authorization and authentication server you have ever seen.