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.



Horos is described as 'Free open source DICOM viewer for macOS supporting advanced medical image visualization, analysis, export, PACS integration, and image privacy features' and is a DICOM Viewer in the sport & health category. There are more than 25 alternatives to Horos for a variety of platforms, including Windows, Mac, Linux, Web-based and iPhone apps. The best Horos alternative is Weasis, which is both free and Open Source. Other great apps like Horos are Starviewer, OsiriX, MicroDicom and 3D Slicer.
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.



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...)




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...



MicroDicom is an application for primary processing and preservation of medical images in DICOM format





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




Too complicated to set up and even more complicated to use.
Free and open source one with a lot of useful extensions. Even though the interface looks a bit cluttered, there are tons of video tutorials that will help through it and once you grab the essentials, you'll be just fine.


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.



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.








All-In-One DICOM Wizard for Radiation Oncology and Radiology. DICOMan is a DICOM/DICOM-RT viewer enhanced with a set of built-in tools such as DICOM Decompressor, DICOM Pusher, DICOM Retriever, DICOM Editor, DICOM Anonymizer, DICOM Format Converter and so on. DICOMan is such a s.



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...


GIMIAS (Graphical Interface for Medical Image Analysis and Simulation) is a software framework designed to be an integrative tool for fast prototyping of medical applications. It is a workflow-oriented environment for advanced biomedical image computing and simulations, and it...


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.
Horos and Osirix on macs is the best option for dicom viewing. Windows software is the slow and clunky