Top OPENID GitHub Repositories & Tools (2026)

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

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

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

🔐 Authentication, Authorization, and Accounting (AAA) App and Plugin for Caddy v2. 💎 Implements Form-Based, Basic, Local, LDAP, OpenID Connect, OAuth 2.0 (Github, Google, Facebook, Okta, etc.), SAML Authentication. MFA/2FA with App Authenticators and Yubico. 💎 Authorization with JWT/PASETO tokens. 🔐

opkssh (OpenPubkey SSH)

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

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

The Janssen Project is a home for open source IAM components, featuring Auth Server (OAuth/OpenID), Agama low-code identity orchestration, and the Cedarling policy decision point. The "Janssen Server" distributions bundle IAM components under one control plane.

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

Typescript framework for building decentralized identity and verifiable credential solutions

All-in-one open-source identity and wallet toolkit.

OpenID 2.0 authentication middleware for ASP.NET Core

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

OpenID Connect App for Nextcloud

OIDC connect user backend for Nextcloud

Cloud Identity, MFA and Compliance for Linux