Niivue
Niivue is an interactive web-based viewer for 3D neuroimaging data. It enables visualization of multiple data types, including volumetric scans, surface models, and annotations, in a fully interactive environment. Niivue supports rotation, zooming, slicing, and dynamic layer configuration to allow efficient exploration of brain imaging datasets.
Learn more at: https://niivue.com/
Live Demo
Start using Niivue at: https://usegalaxy.org/visualizations/create/niivue

Source Code
View the code on GitHub:
https://github.com/galaxyproject/galaxy-visualizations/tree/main/packages/niivue