Spleeter
Spleeter is a free, open-source library for separating vocals and instruments from audio or rebuilding multitracks from a mixed recording.
What Spleeter is
Spleeter is a free, open-source library for separating vocals and instruments from audio or rebuilding multitracks from a mixed recording. Its pre-trained models can produce two stems (vocals and accompaniment), four (vocals, drums, bass, and other), or five (vocals, drums, bass, piano, and other). Developers with isolated-source datasets can also train separation models. Written in Python and built with TensorFlow, Spleeter is available as a command-line tool and Python library, with installation through pip or use through Docker. Deezer says four-stem separation can run 100 times faster than real time on a GPU. Use cases include making instrumental tracks, restoration and remastering, DJ mixes, and extracting vocals for subtitling. Batch processing and API access are listed, with WAV as the export format. Spleeter Pro is an enterprise API offering with faster processing, more accurate separation, and dedicated professional support; contact Deezer for details. The code is MIT-licensed, but users must obtain rights-owner authorization before processing copyrighted material.
Good
- Three pre-trained models offer two, four, or five stems.
- Developers can train models using isolated-source datasets.
- Command-line and Python library access are available.
- Batch processing and API access are listed.
- Free, open-source library with WAV export.
Watch out
- No desktop app is listed.
- Apple M1 issues related to TensorFlow are noted.
- Copyrighted material requires rights-owner authorization.
- Open-source forks and third-party sites are not directly supported by Deezer.
Who it suits
Spleeter suits developers and audio workflows that need vocal or instrument stems, including restoration, DJ mixes, and subtitling. Companies seeking an enterprise API can ask Deezer about Spleeter Pro.
Verdict
Spleeter offers developers a flexible free library for separating audio into several stem configurations. Its command-line, Python, pip, Docker, and API options suit technical workflows, but users should account for platform issues and rights requirements.
Plans and prices
From Spleeter's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Spleeter Free | Free | Source separation library · pre-trained models · CLI and Python library · pip or Docker · Free, open source |
| Spleeter Pro | Priced on request | Enterprise version · available as an API · faster processing · more accurate separation · dedicated professional support · Contact Deezer for details |
The facts
Each one read from Spleeter's own pages, with the date it was checked.
What it does
- Deployment
- The maker says Spleeter can be installed with pip or used with Docker.checked 9 Oct 2026
- Developer access
- Spleeter is written in Python, uses TensorFlow, and can be used from the command line or as a Python library.checked 9 Oct 2026
- Enterprise offering
- Spleeter Pro is described as an enterprise version available as an API, with contact required to learn more about integration.checked 9 Oct 2026
- Integrations
- The project README names Spleeter 4 Max for Ableton Live and lists professional audio products using its pre-trained models, including iZotope RX 8, Steinberg SpectraLayers 7, Acon Acoustica 7, VirtualDJ, and Algoriddim NeuralMix and djay Pro.checked 9 Oct 2026
- Intended users
- Deezer presents the free library for developers and the Pro offer for companies seeking integration into company tools.checked 9 Oct 2026
- License and rights
- The Spleeter code is MIT-licensed, and the README says users must obtain authorization from rights owners before processing copyrighted material.checked 9 Oct 2026
- Limitations
- The project README notes known Apple M1 issues related mostly to TensorFlow compatibility and provides a workaround.checked 9 Oct 2026
- Performance
- Deezer says the 4-stem separation can run 100 times faster than real time on a GPU.checked 9 Oct 2026
- Purpose
- Spleeter separates vocals and instruments from audio files and can recreate multitracks from a flat audio file.checked 9 Oct 2026
- Security and compliance
- The maker pages reviewed provide no Spleeter-specific security certification or compliance statement.checked 9 Oct 2026
- Separation models
- Pre-trained models support 2 stems (vocals and accompaniment), 4 stems (vocals, drums, bass, and other), and 5 stems (vocals, drums, bass, piano, and other).checked 9 Oct 2026
- Support
- The commercial offering advertises dedicated professional support, while Deezer says the open-source forks and websites built on Spleeter are not hosted, maintained, or directly supported by Deezer.checked 9 Oct 2026
- Training
- The library lets developers train source separation models when they have a dataset of isolated sources.checked 9 Oct 2026
- Use cases
- Deezer describes uses including generating instrumental tracks, audio restoration and remastering, DJ mixes, and extracting voice tracks to support subtitling.checked 9 Oct 2026
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