Free Molecular Modelling Programs
This page is a review of some programs for molecule viewing and modeling, I found to be useful.
It isn´t a complete list of all freeware-modelers available and also not a tutorial for the programs listed. If you are searching for one of these things, follow the URL listed below.
In addition, it is pretty outdated by now.
What is a Molecular Modeling Program?
A modeler is used to create input for simulation-programs (to understand the function and mechanism of a given molecule) or to create pictures from these datasets for publications. It can also be used to change certain aspects of an experimental dataset, lets say to simulate the effect of a mutation in a protein or so.
In the computer-stone-age, one needed a real supercomputer to perform this task (displaying and manipulating a huge amount of coordinate-data in real time). The programs where written exclusively for large specialized machines and they where very expensive of course. Luckily CPU-power became cheaper and cheaper every year and thus todays PC´s are able to do what was the field of high-end workstations and mainframes some years ago.
As a result of this, several tools emerged on The Internet to provide the average users with the ability to view and manipulate molecules on their own PC´s screen.
I will give you a review of some programs I started to use approximately 1993 or so (first just for fun, then more or less serious (as this was a major part of my diploma- and also of my Ph.D.-thesis work).
Just click on every program name to select it´s full review, or go to the output-page , where you can read more about creating high-quality images with the different software-packages.
"-" = slow,"=" = medium, "+" = high, "++" = very high, "+++" = very, very high (well...).
You may find a more or less complete list of molecule-viewers and modeling-programs on the World Index of Molecular Visualization Resources , tutorials for the programs may be found on their respective homepages.