Drawing software for Windows/macOS/iPad/iPhone/Galaxy. Includes features for illustration, comics, and animation.
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
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.
Pixel Art to CSS - Draw and animate pixel art, export the results to CSS
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Pixel Art Studio - A purpose-built drawing tool for pixel artists
GIMP - GIMP is a multiplatform photo manipulation tool.