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

OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors

Open source Auth0/Clerk/Firebase alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps

一账通是一款开源的统一身份认证授权管理解决方案，支持多种标准协议(LDAP, OAuth2, SAML, OpenID)，细粒度权限控制，完整的WEB管理功能，钉钉、企业微信集成等，QQ group: 167885406

Node.js library for SAML SSO

A turnkey OAuth & authentication system, designed for both Cloudflare Workers and Node.js

Login.gov Core App: Identity Provider (IdP)

Simple SAML Identity Provider (IdP) for Node

This is a MongoDB provider for the ASP.NET Core 2 Identity framework

Apache Syncope

[UNMAINTAINED] Serverless Authentication as a Service (AaaS) provider built on top of AWS Cognito

Ruby SAML Identity Provider, best used with Rails (though not required)

A centralized login and SSO application to authenticate several websites and mobile apps.

Lightweight SAML Identity Provider

A ranked list of awesome Digital Identity open source projects

Building blocks for servers implementing Simple Cloud Identity Management v2

No description provided.

Spring Boot OAuth 2.0 & OpenID Connect Identity Provider / Authorization Server

OAuth 2.0 & OIDC Auth Server and Identity Provider

Flexible OpenID Connect and OAuth 2.0 server-side implementation for modern ASP.NET projects

Mountable Rails engine that provides OpenID server/identity provider functionality

Get up and running quickly with Okta's OAuth as a Service and your favorite API Gateway.

Projeto Login Cidadão

ASP.NET Core Identity Provider for NHibernate

IdentityServer 4 implementation acting as SAML 2.0 IdP and SP

a Django SAML2 IDentity Provider based on pySAML2

Lightweight AWS Cognito Identity Provider client for Kotlin Multiplatform and Typescript projects.

A trivially simple stack to create an AWS IAM SAML provider via CloudFormation

Finally manage to sync GSuite account with azure active directory!!!

A .NET 7.0 Blazor framework for building configurable applications fast. Supporting both hosting models, Blazor WebAssembly and Blazor Server, a WebApi for accessing data and an Identity Provider for authentication.