Stoplight is a very useful GUI tool that focuses on helping architects and developers to model complex APIs. If we need to consume our RESTful Web Service in many different programming languages, we will find Stoplight extremely helpful. Stoplight provides an HTTP request maker that allows us to compose and send requests and generate the necessary code to make them in different programming languages, such as JavaScript, Swift, C#, PHP, Node, and Go, among others.

Stoplight provides a web version and is also available as a standalone app in Linux, macOS, and Windows. You can download the versions of Stoplight from the following URL: http://stoplight.io/.

The following screenshot shows the HTTP GET request builder in Stoplight with the code generation at the bottom: