VRoid Studio is an application to create 3D models of humanoid avatars (i.e. characters). This application runs on Windows and Mac and can be used for free by anyone. 3D models created with VRoid Studio are available on various VR/AR contents as avatars, both for commercial and non-commercial use. 

A user simply has to create one character using VRoid Studio and they can use that character as their avatar on various VR/AR platforms that support the VRM format.

Recently, 3D models are vastly employed in VR/AR environments as Avatars to communicate with others, as Virtual YouTubers and more.
However, up until now, creating a character from zero has been something that very few people could do.
3D modeling software also tend to be perceived as very hard to use, requiring a very specific set of skills; even creators excelling in the 2D art field might have a hard time modeling their characters according to their own imagination, and the process itself can take a great amount of time.

The character maker VRoid Studio solves all these problems, as its ease of use allows anyone to create their ideal characters.

The hair designing feature lets you model hair with the tip of your pen. Give them volume and movement
Simply draw hair bundles with the pen tool and adjust the parameters to swiftly model your character’s hairstyle. Add hair sway thanks to the intuitive bone settings.

Use the pressure-sensitive pen tool to draw textures just as you like
The texture editing feature is compatible with pressure sensitivity, and you can even create layers. You can draw both on your 3D model directly or in UV mode and see the changes in real time.

The characters’ face and body features can be easily optimized with sliders
The eyes, face, and body parts that give a character their personality can all be freely combined and adjusted. Various facial expression sets such as emotions and eye blinks are automatically generated in models you create.