Stemdeck is a stem extraction platform that isolates individual instruments from audio files through local processing on your machine.
The tool addresses the need to separate mixed audio into component stems—vocals, drums, bass, guitar, piano, and other instruments—for practice, transcription, remixing, and creative workflows. It works by accepting audio files in formats including MP3, WAV, FLAC, OGG, MP4, and M4A, as well as YouTube URLs, then processing them entirely on your local machine to produce isolated stems. Once separated, the tool provides a DAW-style multitrack mixer interface where you can mute, solo, and balance individual stems, zoom waveforms, loop regions, and export either individual stems or custom mixes.
Stemdeck suits musicians, producers, and hobbyists who want to work with stems for personal study and prefer to avoid cloud-based services. It is designed for those who value privacy and want no account creation, uploads, or subscription requirements. The README positions it as a free, open alternative to commercial cloud stem-splitters like Moises and LALAL.AI, noting that if you need mobile apps or deeper musician tooling, those commercial products may be a better fit. The project emphasizes that it is a processing tool for audio you already own, not a downloader, and that all processing happens locally with nothing leaving your machine.
The project maintains active continuous integration checks. Community engagement is supported through multiple channels including Discord, Reddit, Instagram, and X, alongside the main GitHub repository and project website.
