FTSimulator is a software tool for research and study purposes which implements both classical and quantum Fourier transforms. In the quantum case, this simulation is very important since implementations of large scale quantum computers still not exist. One of the limitations found in this simulator was the absence of a graphics user interface, the users could only interact with it through a character-oriented interface. In this context, the goal of this work is to present the implementation of graphics user interface for this simulator, allowing a better interaction with its users as well as a better visualization of the data produced by this software.