Acapella for mashups
Pull vocal references fast and test how they fit in your session. The browser gives you a quick quality check before committing.
For producers
Stem separation for producers
Quick way to get candidate vocals, instrumentals, and reference stems for your session. Test quality in the browser first, then clean up artifacts in your DAW.
- remix prep
- sample extraction
- DAW workflow
- free browser test
Drop a song here — or tap to try it on your track
Free, in your browser. No signup. MP3, WAV, FLAC, M4A, OGG, or video.
Choose a file
Want 5-stem (drums, bass, piano)?
iOS App
Android App
What producers use this for
Arrangement study
Solo or mute instruments to hear structure, dynamics, and mix decisions. Great for analyzing reference tracks.
Sampling prep
Extract rough pieces before detailed cleanup and sound design. Works as a fast first pass before precision editing.
The typical producer workflow
Most producers chain separation with cleanup rather than using raw stems directly.
1. AI split
Get candidate stems quickly in the browser. Takes seconds per track.
2. Evaluate quality
Listen to the hardest sections. If the vocal or instrument you need sounds usable, move to cleanup.
3. Clean up in DAW
Use spectral editing, EQ, and restoration tools to reduce remaining artifacts. iZotope RX, Audacity spectral view, or your DAW's built-in tools.
DAW integration tips
Getting separated stems into your production workflow.
Spectral editing for cleanup
Use spectral repair to surgically remove bleed and artifacts. Target specific frequency bands where the unwanted instrument was loudest.
EQ after separation
High-pass the vocal stem to remove sub-bass mud. Low-pass instrument stems to tame high-frequency artifacts. Cut problem frequencies with narrow bands.
Layering stems from multiple tools
Some producers get the best vocal from Unmix and the best drums from another tool, then combine in the DAW. This takes more time but gives the cleanest results.
Sampling ethics and legality
Personal use is fine
Using separated stems for practice, study, and private projects is generally acceptable.
Commercial use needs clearance
If you plan to release a track commercially using sampled stems, you typically need to clear the sample with the rights holder.
Check your jurisdiction
Copyright law varies by country. When in doubt about a commercial release, get legal advice.
DAW-specific import: Ableton, FL Studio, Logic, Pro Tools
Generic 'put stems in your DAW' advice isn't enough. Here's the actual import chain for the four production environments most producers work in.
Ableton Live: stems → Simpler → warp
Drop separated stems onto Audio tracks and set Warp Mode to Complex Pro for vocal stems (preserves formants and timing), Texture for pad/synth stems, and Beats for drum stems. Time-stretch without pitch-shift using the song BPM. For vocal chops, slice to MIDI on transients and load into Simpler for rapid remix construction. Most Ableton producers keep a 'chops' folder with exported stems named by key and BPM.
FL Studio: Edison editing and Fruity Loops sampler
Load stems into the Playlist as audio clips. Use Edison to trim transients, normalize peaks, and apply declicker before sampling. For one-shot chops, drag selections into the Fruity Loops sampler or Newtone for pitch correction. FL's time-stretch works best with quality set to Professional for vocal material. Stems imported this way can be key-detected with Mixed In Key or the free Sound Snap before resequencing.
Logic / Pro Tools: Flex Time and Aux routing
In Logic, drop stems onto Audio tracks and enable Flex Time with the Polyphonic algorithm for vocal stems, Rhythmic for drum stems. Pro Tools: import as Audio Clips, then route to Aux tracks for parallel processing (plate reverb, de-esser, vocal saturation). Both DAWs auto-detect tempo from the first stem, which saves setup time. For final bounce, print stems at 24-bit/48 kHz to preserve dynamic headroom.
Test it on your own track
Upload any song and hear the separated stems in seconds. Free, no account needed.
Tips for better results
Start with WAV for production work
Lossless input gives cleaner stems. The quality difference is noticeable when you start processing in a DAW.
Quick test in browser, finalize on mobile
Use the free 2-stem browser split to check quality, then use 5-stem on mobile for the final separation if you need individual instruments.
Save your best reference tracks
Build a library of tracks that separate well. These become reliable sources for stems when you need them.
Unmix: Stem Separation with AI
Unmix is a perfect tool that lets you split any song into instrumental tracks and vocals with help of artificial intelligence. After that, you will be able to export and edit those separated tracks as wav or mp3 files.
FAQ
Can I use this for remix and bootleg prep?
Yes. That is one of the most common producer use cases.
Do the stems combine perfectly back to the original?
Not always. Some detail is lost in separation. For most remix and sampling work, this does not matter.
Is the browser version good enough for production?
It is good for quick tests and quality checks. Many producers use the browser to evaluate a track, then use a deeper tool for final stems.
Can I get 5-stem separation?
The browser does 2 stems. The mobile apps split into 5 (vocals, drums, bass, piano, other).
What about copyright for commercial releases?
Using separated stems in commercial releases typically requires clearance from the rights holder. Personal use and private practice are generally fine.
What's the fastest way to import stems into Ableton Live?
Export all four Unmix stems as WAV (Export → 16 or 24-bit), then drag them into Ableton. Each stem lands on its own Audio track. Set Warp Mode per stem type: Complex Pro for vocals (preserves formants), Beats for drums (preserves transients), Texture for pads or synths. Ableton auto-warps to the project BPM. For chopping, highlight a region and press Cmd+L (Mac) or Ctrl+L (PC) to loop it.
Can I key-detect and auto-warp stems for my sample library?
Yes, with the right chain. After export, run each stem through Mixed In Key, Auto-Key (free), or Scaler 2 for key detection. Rename files using the pattern [BPM]_[KEY]_[NAME].wav (e.g., 128_Am_Vocal.wav) and import into Ableton's Library, Splice, or Loopcloud. Both Splice and Ableton can auto-match key and tempo when filenames follow the convention. Drums usually don't need key tagging since they're unpitched.
Are the stems phase-aligned with the original?
Yes — Unmix preserves the original timing and phase. If you export all 4 or 5 stems and mute none of them, they'll sum back to approximately the original mix (minus some separation loss). This matters for remix workflows where you want to rebuild the track. Small phase-cancellation artifacts occasionally show up on sustained harmonic content, but nothing that affects normal DAW usage.
Explore more tools
Vocal Remover
Remove vocals from any song and keep the instrumental.
Acapella Extractor
Isolate vocals for remixes, mashups, and covers.
Karaoke Maker
Create backing tracks for singing and practice.
Stem Splitter
Split a song into individual instrument stems.
Instrument Remover
Remove drums, bass, or piano from a track.
Audio From Video
Extract and separate audio from video files.
Apps
Full 5-stem separation on iOS, Android, and Mac.