Ginkgo CADx is a multiplatform (Windows, Linux, Mac OSX) DICOM viewer and dicomizer. Ginkgo CADx is based in free software (Open Core), so you are free to use and distribute the Open Source version with no cost.
postDICOM - Free DICOM Viewer Alternatives
postDICOM - Free DICOM Viewer is described as 'PostDICOM is a cloud-based DICOM Viewer and clinical documents viewer. You can upload DICOM files and clinical documents using web browsers. You can upload and view your DICOM files from PCs(Windows, MacOS, Linux), tablets and phones(IOS and Android)' and is a DICOM Viewer in the sport & health category. There are more than 10 alternatives to postDICOM - Free DICOM Viewer, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and iPad apps. The best postDICOM - Free DICOM Viewer alternative is Weasis, which is both free and Open Source. Other great sites and apps similar to postDICOM - Free DICOM Viewer are Horos, MicroDicom, RadiAnt DICOM Viewer and OsiriX.