Select neuron from my computer  Allen Cell Types  HBP Model Catalog
View the neuron in the context of an atlas
Set the colors for soma, axons, dendrites etc.
Set the camera position and orientation
No morphology loaded.
Supported file formats: SWC, neurolucida-ASC, neurolucida-XML or neurolucida-DAT/NRX.
Use the above button to select a neuron, or try one of the samples:


After loading a file, it's raw data is visible as an expandable data tree, and its rotatable 3d shape is rendered in the X3D panel. Standard X3D controls apply, notably the 'a' key resets the view to All Visible. You can left click on a tree segment to see its full branch name, which you can then lookup in the data tree to see the corresponding data values.
Color scheme: blue = Axon, red = Dendrites, dark red = Apical dendrite, black = Other.

Terms of use

Viewer created by Rembrandt Bakker, Radboud University Nijmegen & Jülich Research Institute, 2016,
funded by the Human Brain Project Neuroinformatics Platform.
If you use the morphology viewer for your research, then cite the morphology viewer publication in your publications. A manuscript is in preparation, the current citation is the following CNS abstract:
Bakker R, García-Amado M, Evangelio M, Clascá F, Tiesinga P (2017) "P271 Workflow, data format and tools to register neuron morphologies to a reference brain atlas."

What's new

Issue tracker

Acknowledgement for Neurolucida DAT file parsing: Neuronland. Not supported yet are the Genesis .p and AmiraMesh formats.
We've identified two other WebGL-based morphology viewers:


If you have a particular neuron that doesn't load well, please send us (a link to) it.
If the tool does not work on a particular browser/operating system, but that combination does support x3dom (check), then see if you have any javascript errors and send us the error.


This section is to test experimental scripts. Clicking the buttons may result in an unstable state of the viewer.