casdoor/casdoor - OSS Alternative - Discover Top Open Source Alternatives to Popular Software
Identity and Access Management (IAM) Platform
13.5k 2026-04-25

casdoor/casdoor

An open-source, AI-first Identity and Access Management (IAM) platform and authentication server with a modern web UI, simplifying user, organization, and application management.

Core Features

Comprehensive IAM with a user-friendly web console
Extensive protocol support: OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA
AI-first approach, functioning as an AI MCP Gateway
Integration with major identity providers like Google Workspace and Azure AD
Flexible authorization policies powered by Casbin

Quick Start

git clone https://github.com/casdoor/casdoor.git

Detailed Introduction

Casdoor is an open-source, AI-first Identity and Access Management (IAM) platform designed to be a UI-first identity provider and authentication server. It offers a modern web console for managing users, organizations, applications, and various identity providers in one place. With broad protocol support including OAuth, OIDC, SAML, and more, it simplifies authentication and authorization for diverse applications. Casdoor also acts as an AI MCP Gateway, integrating with external identity services and leveraging Casbin for robust authorization policies, making it straightforward to self-host and integrate.

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