Jmol: an open-source Java viewer for chemical structures in 3D with features for chemicals, crystals, materials and biomolecules.
Jmol is a free, open source viewer of molecular structures useful for students, educators and researchers in chemistry, biochemistry and other fields dealing with molecular structure. It is cross-platform, running on Windows, Mac OS X, and Linux/Unix systems.
Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/