Upload your song
Drag in an MP3, WAV, FLAC, or M4A. No sign-up needed.
Free AI stem separator and vocal remover
Split Any Song Into Stems with AI
Upload a track and separate vocals, drums, bass, and other instruments. Processing time varies with track length and queue load. Free to try — no account or software required.
30MBfree upload
30 secfree preview
24hfile expiry
Separation job
Outputs vocals, drums, bass, and other.
Uploads go to R2, processing runs through Replicate Demucs, and downloads unlock after sign-in.
Vocals preview30s free
AI separates the stems
Our model isolates vocals, drums, bass, and other instruments automatically.
Preview and download
Listen free, then choose WAV, FLAC, MP3-320, or the original model output.
Hear the separation wall
These licensed source recordings were AI-separated by StemSlice and excerpted to 30 seconds. User uploads are private and never published.
Bummin on Tremelo
Pop / 0:30
0:00 / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Bummin on Tremelo" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Ether Vox
Contemporary / 0:30
0:00 / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Ether Vox" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Secret of Tiki Island
Jazz / 0:30
0:00 / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Secret of Tiki Island" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Exhilarate
Rock / 0:30
0:00 / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Exhilarate" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Townie Loop
Electronica / 0:30
0:00 / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Townie Loop" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Faster Does It
Jazz / 0:30
0:00 / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Faster Does It" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Four stems, one aligned decision
Preview the same source as vocals, drums, bass, and other before choosing a full export.
Four-stem AI workflow
Separate vocals, drums, bass, and other instruments, then preview the opening 30-second excerpt before choosing a download.
Four true stems
Vocals, drums, bass, and everything else, as separate files you can drop straight into a DAW.
Trackable progress
Follow each upload through queued, separating, preview, and ready states.
Private by default
Your files are encrypted in storage and set to expire 24 hours after job creation, then removed by automated cleanup. We never listen, share, or publish your uploads.
No software to install
Use the web app on a current phone, tablet, or desktop browser; cloud processing handles the separation.
Check the mix before you spend a credit
Use matched playback levels and the exact section you plan to edit, rehearse, or study.
What four stems reveal that a two-track split cannot
A vocal and instrumental pair is enough for simple karaoke, but four stems answer more useful questions. Solo drums to inspect groove and room sound, mute bass to hear harmonic space, compare vocals against the other bed, or rebuild only the section that needs work. This makes the same upload useful to a singer, drummer, bassist, producer, and teacher without creating separate jobs.
A practical quality check before paying
The free preview covers the opening 30-second excerpt. Use it to check obvious bleed, missing consonants, unstable bass transients, and abruptly cut reverb before choosing a complete download. Free preview jobs do not use a credit; paid priority jobs reserve one credit when processing starts and refund it automatically if processing fails.
Choosing the right export for the next step
Original output is fastest when you only need the model result. WAV is convenient for editing and broad DAW support, FLAC preserves lossless audio with smaller files, and MP3-320 is easier to move between devices. Converted archives may take longer for long songs because every stem must be encoded before the ZIP is prepared.
Keep every comparison sample-aligned
When checking four stems, start each file from the same sample position and keep the original mix on a reference channel. Differences in start time, normalization, or limiter settings can sound like separation errors even when the predicted files are aligned. Compare one exposed section and one dense section at matched loudness before choosing an export.
Credits that do not expire
1 credit unlocks one full 4-stem download. Previewing, listening, and failed processing jobs do not consume credits.
Starter
$4.9
5 credits / one-time
Buy CreditsPro
$9.9
30 credits / one-time
Buy CreditsPower
$19.9
60 credits / one-time
Buy CreditsFAQ
Answers for free limits, formats, privacy, copyright, and download quality.
Is StemSlice free?
Yes. You can upload up to 3 songs a day and preview every stem free. Full-quality, watermark-free downloads use credits, which start at $4.9 and never expire.
What audio formats are supported?
Upload MP3, WAV, FLAC, M4A, AAC, or OGG. Download stems as WAV, FLAC, or 320kbps MP3.
How long does processing take?
Processing time varies with track length, source format, export choice, and queue load. The status stays available if your connection drops.
Is it legal to separate a copyrighted song?
Using a stem separator as a tool is legal. However, extracted stems remain the property of the original rights holders — you need their permission for commercial use or public release.
Do I need to create an account?
No. Anonymous users get the full free tier. An account is only needed to keep your credit balance and download history.
What happens to my files?
Everything you upload, and every stem we generate, is set to expire 24 hours after the job is created and then removed by automated cleanup; final removal timing can vary.
How is this different from a vocal remover?
A vocal remover gives you two tracks (voice + instrumental). A stem separator gives you four or more, so you can remix, sample, or practice with far more control.
Extracted stems remain the property of the original rights holders. Commercial use requires their permission.