authentication

Appwrite is an end-to-end backend server for web, native, and mobile developers. It provides a complete backend-as-a-service platform with authentication, databases, file storage, cloud functions, and real-time capabilities, all accessible through REST APIs and SDKs.

PocketBase is a backend for your next SaaS and mobile app in one file. It provides a complete backend solution with database, authentication, file storage, and admin dashboard, all packaged in a single executable file that's easy to deploy and manage.

OAuth2 Proxy is a flexible, open-source tool that can act as either a standalone reverse proxy or a middleware component integrated into existing reverse proxy or load balancer setups. It provides a simple and secure way to protect web applications with OAuth2/OIDC authentication by intercepting requests and redirecting users to OAuth2 providers for authentication.

The simplest way to protect your apps with a login screen - authentication middleware for Docker apps

Para is a flexible and modular backend framework/server for object persistence, API development and authentication. Built with Java, it provides a comprehensive backend-as-a-service platform with built-in database management, user authentication, and API generation capabilities.