BrainBrowser: An open-source JavaScript library offering web-based 3D visualization tools, primarily targeting neuroimaging applications.​

IBIS Neuronav: The Intraoperative Brain Imaging System, an Image-Guided Neurosurgery software platform.​

xdisp: An image display tool for X window systems, developed by Bruce Pike.​

Postf: A simple display program for medical image files, originally developed by Gabriel C. Léger.​

MNI ray_trace: A command-line tool designed for creating static images from medical imaging data.​

JIV2: A register-like visualization tool for neuroimaging data.