Weasis is a multipurpose standalone and web-based DICOM viewer with a highly modular architecture. It is a very popular clinical viewer used in healthcare by hospitals, health networks, multicenter research trials, and patients.



Starviewer is described as 'It is a medical imaging viewer capable of connecting to PACS servers, and/or open locally stored DICOM files in a DICOMDIR as well as stacks of regular image slices (PNG, TIFF, JPG...)' and is a DICOM Viewer in the sport & health category. There are more than 10 alternatives to Starviewer for a variety of platforms, including Mac, Windows, Linux, iPhone and iPad apps. The best Starviewer alternative is Weasis, which is both free and Open Source. Other great apps like Starviewer are Horos, 3D Slicer, RadiAnt DICOM Viewer and OsiriX.
Weasis is a multipurpose standalone and web-based DICOM viewer with a highly modular architecture. It is a very popular clinical viewer used in healthcare by hospitals, health networks, multicenter research trials, and patients.



Free open source DICOM viewer for macOS, designed for 64-bit systems and based on OsiriX, offers advanced visualization, multimodal image fusion, measurement tools, image processing, PACS integration, file export, privacy features, and plugin support.



Slicer is a community platform created for the purpose of subject specific image analysis and visualization.




DICOM viewer. RadiAnt is a DICOM viewer for medical images designed to provide you with a unique experience. With its intuitive interface and unrivaled performance, you'll never look back.



OsiriX is an image processing software dedicated to DICOM images (".dcm" / ".DCM" extension) produced by imaging equipment (MRI, CT, PET, PET-CT, SPECT-CT, Ultrasounds, ...). It is fully compliant with the DICOM standard for image comunication and image file...



Miele-LXIV is a DICOM workstation, viewer and more. The project started in November 2014 as a fork of the popular open source 32-bit project OsiriX, but it has been modified to become a 64-bit application and to remove many of the limitations of the 32-bit version.








AMIDE is a completely free tool for viewing, analyzing, and registering volumetric medical imaging data sets such as SPECT/PET/CT. Renderization in 3D and much more...


InVesalius generates 3D medical imaging reconstructions based on a sequence of 2D DICOM files acquired with Computed Tomography or Magnetic Resonance images equipments.




ClearCanvas Workstation is a full featured, easy to use PACS Workstation that comes in two editions: Clinical, which is FDA 510(k) cleared and intended for clinical use, and Community, which is free and open source.
Medical Imaging for Linux and Windows. Open 2D, 3D and 4D images in DICOM, MetaImage, Nifti, Nrrd and other formats. Front-end for registration with Elastix and many more features.

Athena DICOM Viewer is a breakthrough medical imaging software, an evolution of DICOM Viewers. Developed to high production, Athena incorporates many useful resources, shortcuts and tools to have a better diagnostics and increase production.




Weasis lacks advanced features such as 3D rendering. To summarize, Weasis is more slice-based whereas Starviewer is volume-focused.