How can you compose a custom HTTP request in Fiddler?

The simplest HTTP request can be composed the following way:

• Click on the Composer tab
• Click on the Parsed tab
• Select HTTP method
• Fill in URL address
• Click Execute button

Very often you also want to modify Headers.

And for HTTP methods that support sending Body to the server, the Request Body can be provided as well.

You can send the same request multiple times. Jus click Execute button multiple times.

The submitted request together with its response will appear in the Session List. You can inspert it by clicking it and analyzing Request/Reponse using Inspectors.