GNU General Public License (GPL) Yes NITRC vini: A viewer for fMRI data vini_main vini is a light-weight viewer for MR data. The strives to be fast and simple, yet powerful. Vini also features many practical keyboard shortcuts. Currently, the following file formats are supported: .nii, .nii.gz,.img/.hdr, .v (lipsia's vista format) Furthermore, numpy arrays are *.npy (numpy arrays on disk) The viewer is written in python and does not have any external dependencies. vini: A viewer for fMRI data MR, Visualization, GNU General Public License (GPL) http://www.nitrc.org/projects/vini/, http://https://github.com/lipsia-fmri/vini