Swagger UI
Swagger UI is an open-source tool that generates interactive API documentation from OpenAPI specifications. It provides a web-based interface where developers can visualize, test, and explore RESTful APIs without writing any code. The tool automatically renders API endpoints, parameters, request/response models, and authentication details in a user-friendly format.
Developers should use Swagger UI when building or consuming REST APIs to streamline documentation, testing, and collaboration. It's essential for API-first development, enabling frontend and backend teams to work in parallel by providing a live, interactive reference. Use cases include API development, integration testing, client SDK generation, and onboarding new developers to an API ecosystem.