StemDeck: Free, Open-Source AI Stem Separator That Runs 100% Locally

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

StemDeck is a free, open-source desktop app that splits any song into six stems—vocals, drums, bass, guitar, piano, and other—using Meta AI's Demucs model. It runs entirely on your machine, so your audio never leaves your computer. No account, no subscription, no uploads. You can drop in an MP3, WAV, or FLAC, or paste a YouTube URL, then mix stems in a DAW-style editor with mute, solo, volume, and waveform zoom. Export individual stems or a custom mix. Built with Python, FastAPI, and Tauri, it's a privacy-friendly alternative to cloud services like Moises and LALAL.AI.