Wfuzz has been created to facilitate the task in web applications assessments and it is based on a simple concept: it replaces any reference to the FUZZ keyword by the value of a given payload.
A payload in Wfuzz is a source of data.
This simple concept allows any input to be injected in any field of an HTTP request, allowing to perform complex web security attacks in different web application components such as: parameters, authentication, forms, directories/files, headers, etc.
Wfuzz is more than a web content scanner:
Wfuzz is a completely modular framework and makes it easy for even the newest of Python developers to contribute. Building plugins is simple and takes little more than a few minutes.
Wfuzz exposes a simple language interface to the previous HTTP requests/responses performed using Wfuzz or other tools, such as Burp. This allows you to perform manual and semi-automatic tests with full context and understanding of your actions, without relying on a web application scanner underlying implementation.
It was created to facilitate the task in web applications assessments, it's a tool by pentesters for pentesters ;)
To install WFuzz, simply use pip:
pip install wfuzz
Documentation is available at http://wfuzz.readthedocs.io