StemDeck, a free, open-source and local AI stem separator

StemDeck is a free, open-source app that locally separates MP3, WAV, FLAC, OGG/Opus, MP4, M4A files and YouTube URLs into up to six stems using Demucs’s 6-stem model with automatic Torch device selection. It includes a DAW-style mixer with waveform zoom, looping, per-stem volume, mute, solo, VU meters, BPM/key detection, LUFS measurement, and allows exporting individual stems or a custom mix without uploading data or external dependencies.