Ultimate Vocal Remover GUI (UVR) is a deep-learning-based desktop tool for separating vocals, instrumentals, and individual stems from any audio track. It bundles multiple state-of-the-art source separation models (MDX-Net, VR Architecture, Demucs) behind a single PyTorch-powered interface. UVR is widely used by producers, remixers, and karaoke creators because of its high-quality stem isolation and offline operation.