Synfig Studio - Just another WordPress site
Creature - Creature 2D Skeletal and Mesh Animation Tool
Live2D Cubism - Live2D is the world's first drawing technology to enable 3D rendering of 2D images.
Unity 2D - Unity 2D is a powerful and feature-rich game design solution built from the ground up to fulfill every basic and advanced need of the developer.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
CrazyTalk Animator - CrazyTalk Animator, the next level of 2D animation. Create actors using any photo or illustration.