* [ZITADEL v4.12.0](https://github.com/zitadel/zitadel) – Identity infrastructure solution offering features like multi-tenancy, secure login, and self-service.

* [Casdoor v2.359.0](https://github.com/casdoor/casdoor) – UI-first Identity and Access Management platform supporting various authentication protocols.

* [oidc-client-ts v3.5.0](https://github.com/authts/oidc-client-ts) – TypeScript library providing OpenID Connect and OAuth2 protocol support with session and token management for browser-based JavaScript clients.

* [Pocket ID v2.4.0](https://github.com/pocket-id/pocket-id) – Simple OIDC provider offering passkey-only authentication for passwordless sign-in to self-hosted services.

* [oidc-provider v9.7.0](https://github.com/panva/node-oidc-provider) – OAuth 2.0 Authorization Server implementation with OpenID Connect support and additional features.

* [kubelogin v1.36.0](https://github.com/int128/kubelogin) – kubectl plugin that obtains OpenID Connect tokens via browser-based login and supplies credentials to Kubernetes.

* [dex v2.45.0](https://github.com/dexidp/dex) – Federated OpenID Connect provider that connects to various identity providers for authentication.

* [oidc-spa v10.2.0](https://github.com/keycloakify/oidc-spa) – Framework-agnostic OpenID Connect client for browser-based single-page applications implementing Authorization Code Flow with PKCE.

* [FerrisKey v0.4.0](https://github.com/ferriskey/ferriskey) – High-performance IAM solution optimized for cloud-native environments with a Rust API and React-based web interface.

* [react-oidc-context v3.3.1](https://github.com/authts/react-oidc-context) – Lightweight authentication library for React single page applications using oidc-client-ts.

* [tsidp v0.0.12](https://github.com/tailscale/tsidp) – OIDC and OAuth identity provider server that uses Tailscale identities for authenticating compatible applications and MCP connections.

* [Azure Login Action v3](https://github.com/Azure/login) – GitHub Action to authenticate workflows to Azure and run Azure CLI or PowerShell commands.

* [Slim v0.45.2](https://github.com/ImagingDataCommons/slim) – Single-page application for interactive visualization and annotation of digital whole slide microscopy images in DICOM format.

* [TLSPROXY v0.25.2](https://github.com/c2FmZQ/tlsproxy) – TLS termination proxy with automatic certificate management, QUIC/ECH support, and client authentication for forwarding or passthrough to backend services.

* [Login.gov Identity Provider (IdP) 2026-03-18T132530](https://github.com/18F/identity-idp) – Core code base and documentation for the identity management system powering secure access to government services.