Saint Paint Studio - Saint Paint - The Essential Image Editor
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Stet.io - Stet.io is a high-quality pixel management platform that allows editing the pictures with online commands or multiple options with real-time effects or filters.
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
ImageForge - - ImageForge Standard Freeware Edition:
GIMP - GIMP is a multiplatform photo manipulation tool.