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

ChemDoodle

If you are looking for a chemical sketcher or an alternative to your current chemical drawing application, there is no better choice than ChemDoodle. ChemDoodle works on...

Commercial Mac OS X Windows Linux Android iPhone

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

JChemPaint

JChemPaint is an editor and viewer for chemical structures in 2D. It is free and open source software, written in Java and so it runs on Windows, Mac OS X, Linux and...

Free Open Source Mac OS X Windows Linux

MollyCule

MollyCule is a completely free Open Source Chemistry visualisation program for MacOS, Linux and Windows. MollyCule is designed to be a nice, easy to use program to help...

Free Open Source Mac OS X Windows Linux

MedChem Designer

Free chemical structure drawing program for Windows. Will also run in Linux using WINE. Produced by SimulationsPlus.

Free Windows

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

ChemJuice Grande

What's your favorite molecule? With ChemJuice, chemical structure drawing is now at your fingertips.

Commercial iPhone iPad

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