Monster Mash is a 3D modeling and animation tool based on hand-drawn sketches. It can quickly convert 2D doodles into manipulable 3D forms and create simple animations. It supports free online use and also provides an open-source version and glTF export capabilities.

TokkingHeads is an AI photo animation tool that can turn static portrait photos into animated images or GIFs in a short time, making it suitable for quickly creating dynamic character content.

Omniverse Audio2Face is an AI facial animation tool launched by NVIDIA that can automatically generate matching character facial expressions and lip-sync animation from audio, suitable for real-time and traditional character production workflows.