UVR5 or Demucs on GPU, AI multi-stems on library songs, or a free in-browser split.
Isolate vocals + instrumental on the voice GPU. Demucs is the 1-credit split. UVR5 (MDX-Net) is the 5-credit cleaner lead — you keep those stems. If the GPU is down, use Ultra below.
Fallback when the GPU is down, or when you want every instrument. Full split on a generated ReplicaBeats song — lead, backing, drums, bass, and the rest. We do not run those vocals through UVR5 again (that second pass eats air and consonants).
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A rough, free fallback for uploaded files. It runs entirely in your browser using mid/side processing — not AI — so results are approximate. Works best on stereo commercial tracks.