The makers of RasMol have a page on
free molecular visualization software.
There is another
lengthy list of free molecular viewers. I don't see cause to replicate
them here. Below are some that I have used.
- Protein
Explorer and Rasmol
-
These are two separate programs. The older Rasmol runs standalone in Windows. It
is relatively easy to pipe commands to it using DDE, so you can control it from a script.
Rasmol is no longer under development, but it has been a favorite for
simple viewing. It has been replaced by Protein Explorer runs within a web browser.
-
MolMol
-
From the web site: "MOLMOL is a molecular graphics program for displaying, analyzing,
and manipulating the three-dimensional structure of biological macromolecules, with
special emphasis on the study of protein or DNA structures determined by NMR."
-
MOIL
-
This was developed at Cornell and is free.