- Published on
StemDeck, a free, open-source and local AI stem separator
- Authors
- Name
- DeepHorus
StemDeck, a new free and open-source desktop application, offers musicians and audio enthusiasts a powerful tool for splitting songs into individual instrument tracks without relying on cloud services. The software allows users to drop in audio files like MP3, WAV, and FLAC, or paste a YouTube URL, and then separates the music into up to six distinct stems: vocals, drums, bass, guitar, piano, and other. This local processing ensures complete privacy and control over audio data.
The project positions itself as an alternative to popular cloud-based stem-separation platforms such as Moises and LALAL.AI. Unlike those services, StemDeck requires no account, has no usage quotas, and involves no file uploads. Everything runs directly on the user's own machine using the Demucs AI model. The tool is explicitly designed for personal study and offline use, covering core functionality without competing directly with commercial offerings.
A key feature is its integrated digital audio workstation-style interface. The multi-track mixer includes per-stem volume faders, mute and solo buttons, and live VU meters. Users can zoom waveforms, loop regions, and export individual stems or a custom mix. The software also provides song analysis, reporting BPM, musical key, integrated loudness (LUFS), and sample peak levels.
StemDeck is distributed as pre-built installers for macOS and Windows. On a Mac, users simply drag the app to their Applications folder. First launch automatically downloads the necessary Python runtime and AI model. The application is free, accepts no sponsorship, and aims to provide a simple, no-strings-attached solution for local stem separation.
While the project doesn't aim to replace commercial tools for speed, mobile access, or advanced musician features, it fills a significant niche. For users who prioritize privacy, cost-free access, and local execution for personal projects, StemDeck offers a comprehensive and accessible package. The availability on GitHub underscores its open-source community focus.
