inProxy

If you're looking for a web debugging proxy to handle your traffic and help you analyze everything about it, a tool like inProxy might be the tool to try. It is free-of-charge software, and it can help users manage any web debugging-related task: record, inspect, analyze, manipulate, and simulate HTTP, HTTPS, and WebSocket traffic that takes place between your computer and the domains you visit.

The program's interface is modern-looking, and provides numerous ways for users to make use of its functions: inspection and analysis of headers, cookies, and bodies of a website are processes that are streamlined by the program, as it provides a well-defined workflow for such tasks.

In order to analyze incoming web requests, the program will need to record the user's browsing session. Multiple such sessions can be created, per the user's needs. Upon hitting Record, all requests will be displayed on a list, along with their appropriate transfers. Clicking a domain under the Request list will bring up more details about it, and depending on the page that's being assessed, information about the requests and responses will be presented.

Users can also map requests, which allows them to mock HTTP and HTTPS traffic. To do so, the program will act as a remote server, which can be of great help when configuring the backend for a domain.