Spine - Spine is 2D animation software designed specifically for software and game development.
Reface - The best AI app to face-swap in GIFs and videos
Synfig Studio - Just another WordPress site
Photo Warp - Have fun warping and melting your face!
DragonBones - DragonBones is an open source project for 2D skeletal animation.
Pic Morph - Pic Morph gives you the opportunity to create swap faces animations and share them on social media to get an increase in likes and followers.