Openid Connect GitHub Repositories (2026) · Open Source Tools

The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.

Security-focused, self-hosted SSH and SFTP workspace for homelabs and teams - multi-user, passkeys, OIDC, encrypted keys, backups, and offline-ready.

OpenID Connect authentication provider for Home Assistant

opkssh (OpenPubkey SSH)

Single Sign-On Identity & Access Management via OpenID Connect, OAuth 2, PAM

Easy to use OpenID Connect client and server library written for Go and certified by the OpenID Foundation

A free open source OpenID Connect and OAuth 2.0 framework for ASP.NET Core, based on IdentityServer4

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

Cloud Identity, MFA and Compliance for Linux

S3 Reverse Proxy with GET, PUT and DELETE methods and authentication (OpenID Connect and Basic Auth)

kubectl plugin for Kubernetes OpenID Connect authentication (kubectl oidc-login)

GrantForge (formerly AuthX) is an open-source (MIT) unified permission platform. It answers two questions in one place: who can do what (functional authorization) and who can see which data (data and field authorization).

Mock OAuth2/OpenID Connect server for JVM tests and Docker Compose. No security workarounds needed.

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.

The ultimate Python library in building OAuth, OpenID Connect clients and servers. JWS, JWE, JWK, JWA, JWT included.

OpenID Certified™ OAuth 2.0 Authorization Server implementation for Node.js

CloudFoundry User Account and Authentication (UAA) Server

Reference implementation of OpenPubkey

OpenID/Connect, OAuth2, WS-Federation and SAML 2.0 server based on Duende IdentityServer and ITFoxtec Identity SAML 2.0 with its admin UI