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OBS Studio is the free broadcast layer between your avatar tracker and your streaming platform. Almost every indie VTuber runs VTube Studio or VSeeFace into an OBS scene, then streams to Twitch or YouTube.
Setup order that works
Install OBS after your tracker. Add mic audio, window capture for the avatar, then chat and alert overlays. Our VTuber app download guide walks through install order on a fresh PC.
Comparison guides
Where to go next
Once OBS is stable, tune layouts in the Twitch overlays guide and compare full stacks in best VTuber software.