What is VTube Studio?
VTube Studio is the default Live2D face-tracking app on desktop and mobile. It reads your face from a webcam—or an iPhone with Face ID—and drives a Live2D avatar in real time. Most indie VTubers capture the VTube Studio window in OBS Studio and send that scene to Twitch, YouTube, or any platform OBS supports.
The name appears whenever someone asks which app moves 2D illustrated avatars. VTube Studio is deliberately focused: one runtime for Cubism exports, not a full model studio or a 3D engine.
A tracker, not a rigging studio
VTube Studio sits in the performance layer of a VTuber stack. You bring a finished Live2D folder or .vtube.json setup; the app tracks you and renders the puppet. It does not paint layers, rig parameters from scratch, or replace Live2D Cubism for authoring. Art happens upstream; VTube Studio is what goes live on camera.
That separation is why “I installed VTube Studio but I still have no model” is a common stuck point. The installer is the runtime, not the commission.
Live2D: the file type VTube Studio expects
Live2D Cubism exports load as .model3.json projects with textures and physics. VTube Studio also supports .vtube.json configurations many premade models ship with. It does not open .vrm 3D bodies, PNG sprite sheets, or raw PSDs without a Cubism export step.
Match the app to the file, not to hype: a VRM from VRoid will never track inside VTube Studio no matter how many times you import.
What you get on stream
Out of the box, VTube Studio focuses on face tracking: lip sync, gaze, blinks, brows, and head motion—plus hotkeys for expressions when your model supports them. Mobile tracking via the iOS app is a popular upgrade when desk webcams feel noisy.
You get the flat, illustrated look Live2D is known for. It is not a 3D orbit camera unless your model art fakes depth—format choice matters for the vibe you want on debut.
Who VTube Studio is for
VTube Studio fits indie Live2D VTubers who already have—or will buy—a streamable 2D model and want the community-default tracker on Windows, macOS, or phone-assisted tracking. It is the usual answer when your avatar is layered 2D art, not a VRM.
It is a poor fit if your character is 3D VRM-only, if you want PNGTuber hotkey mouths without Live2D, or if you need node-based props inside the tracker—those paths point to VSeeFace, Veadotube Mini, Warudo, or an all-in-one studio instead.
Where it sits next to OBS
Think in two windows: VTube Studio moves the Live2D puppet; OBS mixes avatar, game, alerts, and audio before the stream key. VTube Studio is not a replacement for OBS on a full PC desk, and OBS does not replace tracking. Mobile-first stacks sometimes fold tracking and broadcast into one app; on desktop the split remains the norm.
