Sketch - Professional digital design for Mac.
Jpixel - JPixel is an editor for making pixel art animations and tilesets.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Synfig Studio - Just another WordPress site
GEES - GEES is an all-in-one AI design platform that is shaping a future where you can brainstorm, design, hand-off in one file — without changing any other tools.
DragonBones - DragonBones is an open source project for 2D skeletal animation.