Hello Ronald,

Fiddler Everywhere’s inspectors use the Monaco editor, which provides syntax highlighting for JSON and XML in HTTP requests and responses through the dedicated JSON and XML inspectors.

Additionally, when a request or response loads in Fiddler, the user has two options:

- Single click on the targeted session; this will load the session using the same inspector the user used previously.

- Double-click on the targeted session; this will load the session in the most appropriate inspector based on the request/response content headers. For example, double-clicking on a JSON session will automatically open the JSON inspector with the JSON content properly formatted.

Please let us know if you would like to see a specific functionality that is not yet available regarding automatic formatting or code highlighting within the available inspectors.

Regards,
Nick Iliev
Progress Telerik