Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
ibis Paint X - Drawn with + ibisPaint
IconLover - Icon editor for Windows.
Huion Sketch - Huion Sketch is an animation and drawing application that comes with all the tools and features, providing you ease when making a painting.
Piskel - Piskel is a website where designers online create sprites or 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.