Avogadro

Avogadro is a free, fantastically easy to use molecule editor. Because this editor is cross platform and light on computer resources, you know you can run it when and where you need it.

Free Open Source Mac OS X Windows Linux

Marvin

Marvin is a great alternative to the subscription based ChemDraw by CambridgeSoft. It is a collection of tools for drawing, displaying and characterizing chemical structures, substructures and reactions.

Free Mac OS X Windows Linux

ACD/ChemSketch

ACD/ChemSketch is a chemically intelligent drawing interface that allows you to draw almost any chemical structure including organics, organometallics, polymers, and Markush structures.

Free Personal Windows

BKchem

BKChem is a free (as in free software :o) chemical drawing program. It was conceived and written by Beda Kosata and is currently maintained by Reinis Danne. BKChem is written in Python, an interpreted and very nice programming language.

Free Open Source Mac OS X Windows Linux

ChemDraw

Communicate with the natural language of chemical structures, biological pathways, and models

Commercial Mac OS X Windows

Gnome Chemistry Utils

The Gnome Chemistry Utils include six chemistry related programs: - GChemPaint, a 2D chemical formula editor. - a chemical calculator (computes raw formule, molar...

Free Open Source Linux

Chemik

Cool Chemistry Tool - educational app for Students. Chemist will help you in chemical tasks! Use the Periodic Table just like a computer keyboard. With the Chemist you...

Freemium Android iPhone Android Tablet iPad

Ghemical

Ghemical is computational chemistry package, which is licensed under GNU GPL . The ghemical authors are listed here . Ghemical is implemented using the C++...

Free Mac OS X Windows

XDrawChem

XDrawChem is a free software program for drawing chemical structural formulas, available for Unix and Mac OS. It is distributed under the GNU GPL. In Microsoft Windows...

Free Mac OS X Windows Linux