BioImage Suite Web

BioImage Suite Web (BISWeb) is a free, open-source medical image analysis suite from Yale University that runs in a web browser, built mainly for neuroimaging researchers. It offers orthogonal viewers, an image editor for manual segmentation, registration and connectivity tools, and all processing happens on your own computer: the project states that no data is ever uploaded to a server. Desktop and command-line versions exist too, which is what most people mean by a “BioImage Suite download”.

It is not a dental program. The official documentation describes it as geared towards neuroimaging (fMRI, connectivity, brain atlases) and states that it is not approved for clinical use. For a dental school or research group it can still be a handy, install-free way to look at and hand-edit 3D volumes, as long as the data is first converted to the NIfTI format it reads.

BioImage Suite Web at a glance

What it does

• Orthogonal Viewer: three-plane viewing plus image-processing tools on a loaded volume.
• Image Editor: an orthogonal viewer with painting tools for manual segmentation.
• Overlay Viewer: orthogonal and mosaic display of functional overlays on anatomy.
• Dual Viewer: side-by-side viewers with linked cursors for checking registrations.
• Connectivity Viewer for fMRI connectivity data (human and mouse versions) and an MNI-to-Talairach coordinate converter.
• Paravision import tool for Bruker preclinical MRI data (desktop version only).
• Reads images in NIfTI-1 (.nii.gz) format in the viewers and command-line tools.
• Library use from JavaScript through the npm packages biswebnode (Node.js) and biswebbrowser (browser or Electron).

How dental teams use it

BISWeb has no dental tools, and we found no official dental examples. The tasks below are general features that a teaching or research group can apply to anonymised dental volumes.

Show a CBCT volume to students without installing software

1. Convert an anonymised CBCT DICOM export to NIfTI with a converter such as dcm2niix.
2. Open the web app in Chrome, start the Orthogonal Viewer and load the .nii.gz file from your disk.
3. Scroll through axial, coronal and sagittal planes and adjust contrast; the file stays on the local machine.

Hand-label a structure for a small study

1. Load the volume in the Image Editor.
2. Paint the region of interest slice by slice and save the label as NIfTI.
3. Use the label in your own analysis pipeline or another tool.

Compare two aligned scans

1. Load both volumes in the Dual Viewer.
2. Use the linked cursors to check whether anatomy lines up after registration.

Install and first run

• Web: nothing to install. Open the web app, pick a tool from the Applications menu and load a local file. The developers note it has been tested mostly on Google Chrome.
• Desktop: the official binaries page lists stable version 1.0 as a Windows installer, a zipped macOS .app and a Linux (Ubuntu) zip, all based on Electron. These builds date from 2018–2019, so the web app is the more current way to use the suite.
• Command line: the command-line tools run on Node.js and are also distributed as the npm package.
• Developers: npm install biswebnode or npm install biswebbrowser; the project also publishes a Docker image and a beta Python package.
• Gotcha: the viewers expect NIfTI. Raw DICOM from a CBCT scanner has to be converted first.
• Gotcha: set your browser’s download location when saving results, as the manual advises for Chrome and Safari.

Limitations

• Not approved for clinical use; the developers say to use it at your own risk.
• Built for neuroimaging; atlases, connectivity and coordinate tools are brain-specific.
• No DICOM import in the documented workflow and no dental tools.
• The desktop builds have not been refreshed since 2018–2019, the web app has no numbered releases, and the user manual is marked as a draft.
• Large volumes depend on the memory and browser of the local machine.

BioImage Suite Web vs alternatives

For quick local viewing, Mango is a lightweight desktop viewer that also works with neuroimaging formats. medInria offers more processing (registration, filtering, meshing) and imports DICOM directly. For 2D measurement and plugins, ImageJ / Fiji is the standard. BISWeb’s distinctive advantage is that the full tool runs in a browser with no installation and no data upload.

FAQ

Is there a BioImage Suite download for desktop?

Yes. Besides the web app there are desktop (Electron) builds for Windows, macOS and Linux, stable version 1.0, plus command-line tools. The older C++/Tcl desktop program called BioImage Suite is a separate legacy product.

Where is BioImage Suite Web on GitHub?

The source is in the bioimagesuiteweb/bisweb repository, with the user manual in a separate bisweb-manual repository.

Is BioImage Suite Web free?

Yes. The core source is free under the Apache License 2.0, and the web app costs nothing to use. Supplied binaries include GPL v2 components.

Does BioImage Suite Web upload my images?

No. The project states that all applications run on your local machine and no data is uploaded to any server.

What is the BioImage Suite Connectivity Viewer?

It is the suite’s tool for displaying fMRI connectivity data, with human and mouse versions.

Can BioImage Suite Web open dental CBCT scans?

Only after conversion to NIfTI; the viewers load .nii.gz files. It has no dental features and is not approved for clinical use.

Last checked against official sources: 29 September 2026 (developer website: bioimagesuiteweb.github.io). Versions and licence terms change — confirm on the developer's site before deploying in a clinic.