List of free molecular viewers

Given here are list of freely available molecular viewer with outstanding features. Individually comparing the features of each of these programs are really too much of work for me. Most of these programs have general features including standard representation ( ribbon, ball and stick, space filling etc) and various coloring features.

Cn3D	Integrated sequence alignment view; embeddable
Chime	Widely used; structure editing; electrostatic maps; embeddable
Chimera	Popular; integrated sequence alignment viewer (EDM, MD)
DS Visualizer	Free version of Accelrys’s powerful viewer/editor program
ICM-Browser	High quality images; integrates with sequence alignment viewer
IMOD	Tomogram alignment, display, segmentation (EDM, optical)
Jmol	Widely used; embeddable
KiNG	Generic tool for creating ‘kinemages’
Mage	Generic tool for creating ‘kinemages’; allows structure editing
Molscript	Useful for preparing manuscript images
MolSurfer	Shows macromolecular interfaces, for example, by electrostatic potential
MOLMOL	Many features, particularly suited for NMR structures
OpenAstexViewer	Embedded in many PDBe (see below) services
ProSAT2	Displays sequence features on three-dimensional structure
PMV	Dynamically extensible; multiple structures, large assemblies  (MM)
PyMOL	Widely used; embeddable; high-quality images (EDM, MM)
RasMol	Widely used; fast; scripting
Raster3D	High-quality, photorealistic rendering
SPICE	Adds DAS features to three-dimensional structures
STRAP	Editor for structural alignments of proteins (HM)
Swiss-PdbViewer	Integrated sequence view (EDM, MM)
VMD	Widely used; extensible, many add-ons (EDM, MD, MM, NMR)
Yasara	Innovative ‘virtual reality’ graphical user-interface (EDM, MM, NMR)

Abbreviations: EDM, electron density maps; HM, homology modeling; MD, molecular dynamics; MM, molecular modeling and molecular orbital visualization; MRI, magnetic resonance imaging; NMR, nuclear magnetic resonance; optical, optical microscopy.