A molecular viewer for Windows9x systems with sequence editor and protein builder. Free for academic use. Additionaly the iMol molecule viewer is available for Mac OS X systems.

Windows-based program for visualization of molecular structures, vibrational modes, molecular orbitals, energy gradient and other properties from log files produced by the GAMESS and Gaussian packages.

Free molecular structure visualization and rendering program for Windows.

A free 3D visualization program for structural biology data with emphasis on analyzing surface or electron density properties. Output can be written as PNG, PostScript or POV-Ray. Runs on IRIX, Linux, OSF1 and SunOS.

Desktop Molecular Modeller: A simple program for constructing and viewing small molecules and proteins in 3D with some energy calculation/minimization capabilities. Run on any PC with Windows 9X/NT. Commercial software.

3D-Molecular Modeling Software, available at no charge for the Windows platform. Has functions for visualization of biomolecules and results from GAMESS QM calculations, and for aligning and modifying structures.

A free program for the analysis of molecular dynamics trajectories and the display of molecular orbitals, electron densities and electrostatic potentials. Supports many file formats like the GaussianXX, Jaguar, CHARMM, and AMBER.

A visualization and analysis program useful for the display and manipulation of the surfaces of molecules and their electrostatic properties. Commercial software.

Digitized versions of 16mm movies of molecular structures produced in the early days of interactive molecular graphics.

Program for Linux and Windows for viewing and manipulating 3D structures of molecules and orbitals. Renders publication quality images and performs Fenske-Hall SCF calculations.

Open source molecule viewer written in Java. It runs as a standalone application and as a web browser applet.

3D molecular visualization, rendering and file format conversion tools for biological and/or chemical data, for Windows and Linux. Evaluation version available.

Plastic molecular models for constructing polypeptides and DNA molecules.

Plastic molecular structure models for research and education in science, intended especially for biochemistry.

A molecular model building program for displaying data from MM2, MOPAC, Gaussian94, charmm and amber4 outputs. Supported on most windows, mac and unix platforms.

Pre- and post-processing program for molecular and electronic structure, with Z-matrix editor, electron density visualization, and molecule animations. Available for Unix and VMS; free for academic use.

A free program for displaying, analyzing, and manipulating the three-dimensional structure of biological macromolecules, with emphasis on structures determined by NMR. Runs on UNIX and Windows NT/95. The site offers an online tutorial.

Plastic molecular models for use in chemistry, biochemistry, molecular biology (DNA double helix), semiconductors and crystal lattice structures.

Provided for the convenience of users and software developers of open source versions of RasMol.

A directory of links to free molecule viewers and editors.

A chemical visualization and illustration program. Reads PDB files and exports POV-Ray files for producing high-resolution ray-traced images. Available for Windows, Linux, Mac, and SGI.

A web-based viewer for the 3D structures of proteins, DNA and RNA. Requires Netscape and the Chime plugin, which is only available for Windows9x.

ProteinScope is a free program to view and create animations of Protein Data Bank PDB files.

A free and flexible molecular graphics and modelling package which can be also used to generate animated sequences.

An OpenGL-based molecular viewer for Windows 95/NT/00 and X Windows. Freely available; includes source code.

Molecular visualization freeware for proteins, DNA, and macromolecules. Freely available for Windows, Macintosh, and UNIX.

Reviews, screenshots, and table of features comparing over a dozen freely available molecular modelling and viewing programs.

A suite of freeware tools for automating work of rendering and animating molecules. Generates high quality images of molecules from PDB, XYZ, or molfiles using raytracing tools (Povray and Raster3D).

A free program for viewing and analyzing several proteins at the same time. Some energy minimzation and homology modeling features are also included.

An open-source graphical front end for computational chemistry programs such as Gaussian, Gamess, and Mopac. Available for Linux, FreeBSD, Mac OS X, and other Unices.

A free program for visualization and analysis of biological systems such as proteins, nucleic acids, and lipid bilayer assemblies.

A Windows9X/NT program to visualize and analyze small molecules and proteins. Also available as an ActiveX Control.

A free molecular visualization and animation program for the X window system. Creates images and movies, using either the built in renderer or povray. Still alpha.