Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
VistaCreate - The VistaCreate is a free and global digital platform which is known for sharing, searching, finding, and creating great art.
Pixilart - A drawing app for delightfully retro pixel art
Art Set 4 - Art Set 4 is the extravagant and intelligent Painting and drawing application that facilitates you to create drawings or painting with the help of a variety of different features and functionalities.
Pixel Art Studio - A purpose-built drawing tool for pixel artists
IconLover - Icon editor for Windows.