Swagger UI is a tool that allows developers and end consumers to visualize and interact with the resources of an API without having any of the implementation logic in place. It is automatically generated from the OpenAPI Specification, which is an API description format for REST APIs. Swagger UI generates interactive API documentation that lets users try out the API calls directly in the browser. It creates a platform that arranges each of the methods (get, put, post, delete) and makes them easily accessible. Swagger UI is one of the attractive tools provided by Swagger, which is a set of rules, specifications, and tools that help developers document their APIs. By using Swagger UI to expose API documentation, developers can save significant time and organize their methods and even add the examples they need. Overall, Swagger and Swagger UI are capable of making the work of developers much easier when it comes to documenting APIs, and well-documented APIs are accessible by other developers, which can improve them.