GIMP - GIMP is a multiplatform photo manipulation tool.
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
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.
Adobe Animate - Adobe Animate is a Flash, vector animation software.
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
Pencil2D - Pencil2D is an opensource animation/drawing software for Mac OS X, Windows, and Linux, based on old...