Spine - Spine is 2D animation software designed specifically for software and game development.
FaceTrackNoIR - FaceTrackNoIR is only available for Windows-based PC's (sorry, we have to start somewhere) and...
Synfig Studio - Just another WordPress site
Eyeware Beam - Turn your phone into an eye & head tracker!
DragonBones - DragonBones is an open source project for 2D skeletal animation.
FreeTrack - Head tracking software for webcams, Nintendo Wii Remotes and NaturalPoint cameras (TrackIR...