Spleeter
Deezer's source separation library with pretrained models for splitting songs into stems.
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About Spleeter
Spleeter is listed in our music production category and is aimed at builders. Deezer's source separation library with pretrained models for splitting songs into stems. Pricing, as the maker states it: Open source (MIT). Maturity: Active. We last checked the official link on 2026-10-19.
What is Spleeter?
Spleeter is Deezer's open-source source separation library, written in Python on TensorFlow, with pretrained models that split a song into stems: vocals and accompaniment (2 stems), vocals, drums, bass and other (4 stems), or vocals, drums, bass, piano and other (5 stems).
Deezer reports that the 2- and 4-stem models perform strongly on the musdb benchmark and that it can separate audio into 4 stems about 100 times faster than real time on a GPU. It runs from the command line or as a Python library, installs with pip or Docker, and can be used to train your own separation models.
Sources: the official README and our directory listing, checked 2026-10-19. Official site: research.deezer.com/projects/spleeter.html.
Who is Spleeter for?
Musicians, remixers, karaoke and audio developers who need fast, scriptable stem separation.
Spleeter at a glance
- Open source: Yes (MIT License)
- GitHub: deezer/spleeter · 28,499 stars (as of Oct 21, 2026)
Key features
- Pretrained 2-, 4- and 5-stem models
- About 100x faster than real time for 4 stems on a GPU
- Command line and Python API
- pip, Conda and Docker installs
- Train your own separation models
Spleeter FAQ
What is Spleeter?
Spleeter is Deezer's open-source source separation library, written in Python on TensorFlow, with pretrained models that split a song into stems: vocals and accompaniment (2 stems), vocals, drums, bass and other (4 stems), or vocals, drums, bass, piano and other (5 stems).
Who is Spleeter for?
Musicians, remixers, karaoke and audio developers who need fast, scriptable stem separation.
Is Spleeter free?
Spleeter's pricing, as the maker states it: Open source (MIT). Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Spleeter open source?
Yes. Spleeter is released under the MIT License, according to its GitHub repository.
Is Spleeter free for commercial use?
The code is open source under the MIT License.
What are alternatives to Spleeter?
Similar tools include AudioCraft, YuE, ACE-Step, Boomy, Udio and Voice-Swap.
Spleeter ratings and reviews
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Spleeter alternatives
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AudioCraft
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YuE
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ACE-Step
Open music generation foundation model for fast full-song generation and editing.
Boomy
Make generative songs with AI and release them to streaming services.
Udio
AI music generator for songs with vocals. Since its deal with Universal Music Group, downloads are disabled and tracks stay on the platform.
Voice-Swap
Licensed artist voice models and custom voice conversion for musicians.
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