OPEN-TOON is an open-source project for building a professional 2D animation application that combines drawing, rigging, compositing, and production tools in a modern, minimalist interface.
Open-source 2D skeletal animation editor for games and film. AutoRig layered PSDs, animate with meshes, IK and physics, lip-sync from audio, render video, export JSON/.skel. JavaScript, Rust, Godot and Unity runtimes. Built-in MCP server for AI assistants. Docs: rigby2d.com/docs