ChemInnovation Software - Chemistry 4-D Draw high-quality structures quickly by entering molecular names. It also assigns systematic names, drawing and text editing.CambridgeSoft - Computational, database, communication and drawing software for chemists.
MOLGEN - Program for the automatic generation of constitutional isomers and combinatorial libraries, for Unix/Linux and WinNT/95. Free demo available.
Molecular Arts Corporation - Producer of three-dimensional molecular drawing and modeling software, safety and chemistry clip art packages, safety symbol fonts.
PovChem - A chemical visualization and illustration program.
PLT - Free structure drawing program for Windows; capable of exporting structures as metafiles, bitmaps, and HTML pages.
Chemist's Art Gallery - Visualization is a key to understanding how molecules behave and react, and in designing chemicals for particular purposes.
ChemWindow - Program for drawing 2-D chemical structures, laboratory apparatus, and chemical engineering flowcharts.
RasMol - Molecular visualization freeware for proteins, DNA, and macromolecules. Freely available for Windows, Macintosh, and UNIX.
Qmol - A lightweight molecular viewer for Windows 95/NT and X Windows. Freely available; includes source code.
JME - Java based Molecular Editor which can create SMILES code.
JChemPaint - Free, open-source editor for 2D chemical structures. Written in Java.
Gifcreator - Create GIFs and PNGs of 2D plots of chemical structures.
MarvinSketch & MarvinView - Java based molecule editor. Marvin can handle molecules in various file formats including MDL mol, Compressed mol, unique SMILES, SMARTS, Sybyl mol, PDB, CML, XYZ, POV-Ray
ChemPen - Structure drawing, 3D modeling and NMR prediction. Demos and online ordering available.
CACTVS System - A distributed client/server system for the computation, management, analysis and visualization of chemical information of any type. Tool collection for several Unix flavors; some of the tools are distributed freely in precompiled form.
Molecule for Macintosh - Structure editor. Especially suited for computational chemistry, supports several file formats and operations such as animations and optimizations. License fee required.
Chemtool - 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.
