Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
ImageJ - and Other Health Care
Fotor - Fotor is an all in one visual platform. It includes photo editor, collage maker, and graphic designer. You are free to make a visual look more beautiful.
TrueChem - TrueChem is software designed specifically to control and automate the management of chemistries, coatings, and wet processes.