Structural

Free software for drawing organic molecules and storing them as an X-Bitmap, LaTeX and XFig file. For Linux/Unix, includes source code, screenshots, and downloads.

A latex2e package for generating structural diagrams.

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

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