While VTube Studio is primarily a tracking app, it includes built-in free models. It is the industry standard for hosting and customizing 2D avatars. Vroid Studio (3D to 2D Style)

: The most popular marketplace for VTubers. Search for "Free Live2D" or use their filter tool to set the price slider to zero.

: This paper presents Spiritus , a system that automates the creation of animatable 2D characters from natural language descriptions and sketches.