Do-It-Yourself Molecules:
From 2D to

JChemPaint 2 DIY

JChemPaint 3 DIY

JME

SketchEl DIY

Doodler
(ChemDoodle Web Components)

JSDraw
(Chemene)

jsMolEdit 0.2

jsMolEdit 0.3

Kemia
under development

Ketcher