Runs an MDX-Net model entirely in your browser. Nothing uploads. First run downloads the model once, then it's cached.
Device check
Pick a file to begin.
Compare A/B by ear. The primary stem is the target (vocals or instrumental depending on model).
no uploadno accountMIT models
Honest limits: this is a 2-stem MDX-Net test, not the studio's full 4/6-stem
htdemucs_ft / SCNet / RoFormer pipeline. It's here to measure speed on your device.
Best on a desktop with WebGPU; a phone or a 4 GB laptop will use the slower CPU path.
Low-RAM safety: on a device with 4 GB or less (or no WebGPU), this page
hard-limits you to the lightest model and a 30 second clip, and asks you to confirm
before it starts — the earlier build could freeze or restart a low-RAM machine, because
it decoded the whole song to memory before running the model. Pre-trim long files.