Spirit - The animation tool for the web.
Synfig Studio - Just another WordPress site
Pinreel - Pinreel is lightweight application software that is used to create fun and interesting animation videos by using pro-level templates.
Live2D Cubism - Live2D is the world's first drawing technology to enable 3D rendering of 2D images.
Adobe Animate - Adobe Animate is a Flash, vector animation software.
Creature - Creature 2D Skeletal and Mesh Animation Tool