WaveIDioT is a Matlab toolbox allowing for improved 3-D denoising of fMRI data sets using a wavelet-based hierarchical approach. With the help of this toolbox, the user can easily smooth the data without losing essential spatial details (edges, shape of gyri etc.) right after the other preprocessing steps have been applied. The GUI provides an easy-to-use tool for beginner’s whereas the batch scripts will soon be available for experienced users.