Burp Repeater is a fantastic tool that provides a capability to manually manipulate certain parameters and values without having to work through the full application logic of a web application.

During testing, you may only be interested in one or two requests made to a web server.  The Repeater allows testers to right click and send individual requests to the Repeater tab. When in Repeater, it is possible to manipulate parameters within a request and observe the response immediately.  This creates an efficient environment to work within when developing payload strings.

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