MicroDicom - DICOM viewer. MicroDicom is a free DICOM viewer. Export to the most common picture formats, movie, clipboard. It is equipped with most common tools for manipulation of DICOM images.
ImageJ - and Other Health Care
Horos - A free, open source 64-bit DICOM medical image viewer
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
3D Slicer - Slicer is a community platform created for the purpose of subject specific image analysis and...
ACD/ChemSketch - ACD/ChemSketch for personal and academic use brings the power of our structure drawing package to your home computer.