Net2Brain is a graphical and command-line user interface toolbox for comparing the representational spaces of deep neural networks (DNNs) with human EEG recordings. Unlike existing toolboxes that support only a single function or focus on a small subset of supervised image classification models, Net2Brain extracts activations from over 600 DNNs trained to perform various vision-related tasks (e.g., semantic segmentation, depth estimation, action recognition, etc.) from image and video datasets. The toolbox computes a representational similarity matrix (RDM) for these activations and compares them to EEG recordings using a representational similarity analysis (RSA) using specific regions of interest (ROIs) and searchlight search, as well as a weighted RSA. Furthermore, new stimulus and EEG recording datasets can be added to the toolbox for evaluation. This paper demonstrates the capabilities and advantages of Net2Brain through an example demonstrating how to test hypotheses in cognitive computational neuroscience.