Stem splitter

AI Stem Splitter for Producers and DJs

Split a full mix into usable stems for remixes, mashups, sampling, and DJ sets. The free path provides a 30-second excerpt without a credit; starting a paid priority job reserves one credit before processing.

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
1

Upload the track

Full-quality files welcome: WAV, FLAC, MP3, M4A.

2

AI splits the stems

Vocals, drums, bass, and other, each as its own file.

3

Audition, then download

Preview every stem free. Unlock lossless downloads with credits.

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.

Prepare tracks for the booth and the DAW

Audition transitions and low-end sections before committing a stem export to a live set.

Made for heavy use

Priority queue for paid jobs and batch-friendly pricing, so weekend prep doesn't mean waiting in line.

Check the opening excerpt

Audition the free opening excerpt before choosing a full export for a club, stream, or live set.

Lossless where it counts

WAV and FLAC downloads that hold up to pitching, warping, and mastering chains.

Credits never expire

Buy a pack, use it whenever. No subscription, no monthly drain.

Build a repeatable producer workflow

Reference files, synchronized starts, and one approved archive keep collaborators aligned.

A DJ preparation workflow that preserves options

Split the track before building the final edit, then align the stems to the same downbeat in the DAW. Keep the untouched mix on a reference channel, test vocal-only transitions, and automate drums or bass rather than printing changes immediately. Four synchronized parts make it easier to revise a mashup when a transition works in headphones but not on a full-range system.

Check timing and phase before a club or live export

AI stems are designed to recombine, but lossy source material and independent processing can expose small artifacts. Sum all stems and compare them with the reference, inspect kick and bass transients, and avoid normalizing every file independently before alignment. For performance use, render a short test section through the same limiter and playback chain planned for the set.

Plan large prep sessions around export cost

Queue the most important songs first and judge previews before exporting everything. Original-format ZIPs avoid extra conversion, while long WAV or FLAC batches require more server time and much larger downloads. Keeping one approved export per job and format reduces repeated work and gives a predictable archive for collaborators.

Archive one approved export per track and format

Use a stable project name, tempo note, source reference, and chosen export format when preparing a set. Reusing the cached archive avoids unnecessary conversions and prevents collaborators from editing slightly different versions. For long FLAC or WAV jobs, prepare the archive before the rehearsal or performance window.

Credits that do not expire

1 credit unlocks one full 4-stem download. Previewing, listening, and failed processing jobs do not consume credits.

FAQ

Answers for free limits, formats, privacy, copyright, and download quality.

What's the difference between a stem splitter and a stem separator?

None — they're synonyms. Both split a song into individual tracks like vocals, drums, and bass.

Is the stem splitter free?

Previews are free (3 uploads a day). Full-quality downloads cost 1 credit per song, with packs from $4.9. No subscription required.

Can I use the stems in my DJ sets and remixes?

Plenty of DJs and producers do exactly that. Keep in mind the stems still belong to the original rights holders — commercial releases need permission.

How many stems does it produce?

Four: vocals, drums, bass, and other instruments.

Does it handle long files?

Free tier covers songs up to 6 minutes. Paid users can split tracks up to 20 minutes and 500MB.

How fast is it?

Processing varies with song length, format, and queue load. Paid jobs use the priority path when it is configured.

What happens to my uploaded tracks?

They're encrypted in storage, set to expire 24 hours after job creation, and then removed by automated cleanup. Nothing is shared or made public.

Extracted stems remain the property of the original rights holders. Commercial use requires their permission.