Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
Icy - Icy is an open community platform for bioimage informatics
ImageJ - and Other Health Care
ACD/ChemSketch - ACD/ChemSketch for personal and academic use brings the power of our structure drawing package to your home computer.
JMicroVision - Image analysis toolbox: measuring and quantifying components of high-definition images
TrueChem - TrueChem is software designed specifically to control and automate the management of chemistries, coatings, and wet processes.