An HTTP proxy is one of the most important tools in the kit of a web application hacker, and Kali Linux includes several of these. A feature that you might miss in one proxy will surely be in another proxy. This underscores the real advantage of Kali Linux and its vast repository of tools.

An HTTP proxy is a software that sits between the browser and the website, intercepting all the traffic that flows between them. The main objective of a web application hacker is to gain deep insight into the inner workings of the application, and this is best accomplished by acting as a man in the middle and intercepting every request and response.