Spine - Spine is 2D animation software designed specifically for software and game development.
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
Live2D Cubism - Live2D is the world's first drawing technology to enable 3D rendering of 2D images.
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
Synfig Studio - Just another WordPress site
VistaCreate - The VistaCreate is a free and global digital platform which is known for sharing, searching, finding, and creating great art.