Spleeter
github.com
Open-source AI tool from Deezer for splitting audio stems.
Quick Information
- Category:
- Audio & Music
- Pricing:
- Free
- Platforms:
- Self-hosted, CLI
- Free Plan:
- Yes
- API Available:
- Yes
- Last Verified:
- September 2026
What Is Spleeter?
Spleeter is an open-source AI tool from Deezer for splitting audio stems into individual components (vocals, drums, bass, other instruments), providing trained models for 2-stem (vocals/accompaniment), 4-stem (vocals/drums/bass/other), and 5-stem (vocals/drums/bass/piano/other) separation, capable of processing audio 100x faster than real-time on a GPU. Deezer officially stopped maintaining Spleeter in 2022, and as of 2026 it remains technically available and free/open-source but is genuinely deprecated technology — the gap between Spleeter and modern alternatives has grown substantial.
A genuinely important honest assessment worth understanding: if you're still using Spleeter for audio source separation in 2026, you're using deprecated technology — industry commentary from early 2026 notes developers and organizations are actively migrating away from Spleeter toward newer alternatives like Demucs, which offer meaningfully better separation quality using more modern architectures developed since Spleeter's last update.
It's aimed at users specifically needing a free, open-source, self-hostable stem separation tool who don't require state-of-the-art separation quality, with the important honest caveat that Spleeter is genuinely outdated — anyone starting a new project should seriously consider Demucs or other actively-maintained alternatives instead, reserving Spleeter primarily for legacy projects already built around it or situations where its specific model architecture is genuinely still sufficient for the task. See our Audio & Voice tools directory for related tools like Demucs and LALAL.AI.
What Can You Use Spleeter For?
Audio stem separation
Splits mixed audio into vocals, drums, bass, and other instrument stems.
Legacy audio processing pipelines
Serves existing projects already built around Spleeter’s architecture.
Free self-hosted separation
Provides free, open-source stem separation without cloud service costs.
Spleeter Features
- Multi-stem separation — Supports 2, 4, or 5-stem separation depending on the model used.
- GPU-accelerated processing — Processes audio up to 100x faster than real-time on a GPU.
- Open-source and free — Provides completely free, self-hostable audio separation.
Who Is Spleeter For?
- Users needing free, self-hosted separation — Uses Spleeter for free, open-source stem separation without cloud costs.
- Legacy project maintainers — Uses Spleeter for existing pipelines already built around its architecture.
Spleeter Pros & Limitations
What We Like
- Genuinely free and open-source, with no cloud service costs
- Fast GPU-accelerated processing (up to 100x real-time)
- Multiple stem-count options (2, 4, or 5 stems) for different separation needs
Limitations
- Officially unmaintained by Deezer since 2022 — genuinely deprecated technology as of 2026
- Separation quality has fallen meaningfully behind newer alternatives like Demucs
- No active development means no bug fixes or model improvements going forward
Spleeter Pricing
| Plan | Price | Main Features |
|---|---|---|
| Open Source | Free | Self-hosted, 2/4/5-stem separation models |
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #152
- Overall Score:
- 71.5/100
- Monthly Users:
- –
- Rank Change:
- ▲ 85
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by Spleeter or its company. How Our Rankings Work
Frequently Asked Questions
Is Spleeter still maintained?
No, Deezer stopped maintaining it in 2022 — it remains available but is genuinely deprecated.
Is Spleeter free?
Yes, it’s completely free and open-source.
Should I use Spleeter for a new project?
Consider newer alternatives like Demucs instead, given Spleeter’s deprecated status.
How many stems can Spleeter separate?
2, 4, or 5 stems depending on the model used.
Our Take
Spleeter is honestly deprecated technology as of 2026 — Deezer stopped maintaining it in 2022, and the quality gap versus newer alternatives like Demucs has grown substantial.
Consider actively-maintained alternatives for new projects, reserving Spleeter primarily for legacy pipelines already built around its architecture.
Spleeter Alternatives
Spleeter Comparisons
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