Bring a recording
Use an audio file you own or have permission to work with. Start with a short, clean excerpt.
Give every part a little more room.
Separate a recording into useful layers, build a practice mix, or listen to an instrument more closely.
Stemix
Audio-Spuren trennen
Kostenlos. Ohne Anmeldung. Unbegrenzte Exporte.
Bei der ersten Nutzung ist ein Download von 216.7 MB erforderlich
Komponenten werden in diesem Browser gespeichert. Dein Audio bleibt auf deinem Gerät.Audio wird getrennt
正在准备…
A few steps. Plenty of possibilities.
Read the guideChoose what you need
Try 2 stems for vocals and backing. Choose 4 for bass and drums, or 5 when you need a separate piano estimate.
Listen before you save
Compare the separated tracks, adjust their levels, then export a stem or Mix. Separation can leave audible artifacts.
Choose the model that fits your next step.
More stems are not a quality setting. Each model groups sounds differently and has its own resource cost.
Vocals & accompaniment
A useful first choice for a vocal reference or a practice backing track when you do not need separate drum and bass controls.
A closer look at the arrangement
Estimates vocals, drums, bass and other instruments. Guitar and strings commonly share Other; this is not a dedicated guitar extractor.
An additional piano estimate
Adds a piano estimate to the four main groups. Try it on a clear piano recording; synthesizers and processing can affect the grouping.
Make sense of what you hear.
Explore the field notesGuides in English
PRACTICE WORKFLOW · 3 MIN READ
Make a practice backing track without losing the song
A vocal-removal workflow that keeps the rhythm and arrangement useful, with checks for reverb, backing vocals and mono playback.
Read the guide FILES & EXPORT · 3 MIN READMP3 or WAV? Choose the file for what happens next
The actual Stemix output settings, realistic size estimates, and the difference between saving a stem and saving Mix.
Read the guide TROUBLESHOOTING · 2 MIN READWhy you hear bleed, reverb or a watery texture
A listening checklist for separation artifacts, with practical adjustments and clear limits on what this tool can fix.
Read the guideGood questions, straight answers.
Is it really free?
Yes. Separation, mixing, local history and MP3/WAV exports are free. You do not need an account, credits or a subscription. Ads help support the site.
Does my audio leave my device?
The tools process selected audio locally. Models and components are downloaded, but your audio, filenames and results are not sent to XSL. Advertising and site delivery make separate network requests.
What are the current limits?
Stemix accepts files up to 256 MB and audio up to 10 minutes. Processing also depends on available memory and a compatible WebGPU browser. Audio Inspector has a 64 MB limit.
Will a separated track sound like the studio original?
No guarantee. These are model estimates of a mixed recording. Reverb, overlapping instruments and lossy compression can leave bleed or a watery texture. Read the guide on separation artifacts.
Which browser should I use?
For Stemix, start with an up-to-date Chrome or Edge with WebGPU and hardware acceleration. Audio Inspector uses the browser’s audio decoder and does not require WebGPU.
Can I use someone else’s song?
You are responsible for permission to process and reuse a recording. Separating it does not grant ownership or permission to publish. See our terms and use content you are authorized to work with.