VistaCreate - The VistaCreate is a free and global digital platform which is known for sharing, searching, finding, and creating great art.
Synfig Studio - Just another WordPress site
PaintCAD - Pixel art image editor, created for full keyboard control of image drawing without mouse using.
DragonBones - DragonBones is an open source project for 2D skeletal animation.
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
Spine - Spine is 2D animation software designed specifically for software and game development.