MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
Bomomo - Bomomo is an online drawing tool that enables you to draw beautiful designs with a single stroke.
GIMP - GIMP is a multiplatform photo manipulation tool.
Corel Painter - Corel Painter is media painting software.
Microsoft Paint - Paint (formerly Paintbrush) is a simple, ultra-basic graphics painting program that is included...
Silk - An Interactive web canvas for "Light Painting"