GoKawiilOpen-source tool StemDeck offers free local AI audio stem separation
StemDeck is a newly released free, open-source application that separates audio files into up to six individual stems—vocals, drums, bass, guitar, piano and other—entirely on the user's own computer. It accepts common formats like MP3, WAV, FLAC and M4A, or a YouTube link, and includes a built-in mixer for muting, soloing, looping and exporting tracks. The tool requires no account, upload, subscription or internet-based processing.