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Stem separator

Free AI Stem Separator

One song in, four clean stems out — vocals, drums, bass, and other instruments. Powered by a latest-generation AI model. Free preview, no sign-up.

Separate a TrackCompare Stems
30MBfree upload
30 secfree preview
24hauto-delete

Drop an audio file here

MP3, WAV, FLAC, M4A, AAC, or OGG. Free tier supports 30MB and 6 minutes. Paid jobs support 500MB and 20 minutes.

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

Drop your file

MP3, WAV, FLAC, M4A, AAC or OGG, up to 30MB free.

2

Let the AI listen

It separates the mix into vocals, drums, bass, and other stems in about 90 seconds.

3

Preview each stem

Solo any track for 30 seconds, free. Download full stems whenever you're ready.

Hear the separation wall

These are self-made demo clips from original or royalty-cleared material. User uploads are private and never published.

Built for clean stems and clear rights

StemSlice keeps the page useful for casual singers and serious producers without turning every visitor into a subscriber.

Latest-generation model

Noticeably cleaner separation than older tools still running first-gen open-source models, especially on dense rock and pop mixes.

Real stems, not filters

Each stem is reconstructed by AI, not carved out with EQ, so vocals stay intact and instrumentals don't bleed.

DAW-ready output

Download WAV or FLAC and drag the stems straight into Ableton, FL Studio, Logic, or Pro Tools.

Your files stay yours

Encrypted storage, auto-deleted after 24 hours, never shared or published.

Everything to know before you upload

Practical details about quality, formats, privacy, credits, and legal use, written for people comparing stem separation tools before processing real music.

Why this free AI stem separator is built as a real tool page

StemSlice is designed as a working free AI stem separator, not a thin landing page that sends you somewhere else after the headline. The upload panel, preview player, pricing logic, privacy notice, FAQ, comparison material, and internal tool links all live on the same page because the user intent is practical. People searching this phrase usually have a file ready, a concrete job in mind, and very little patience for account walls. The page therefore starts with the tool, explains the limits in plain language, and keeps the surrounding copy focused on decisions that matter before uploading: supported formats, preview length, file retention, download quality, legal responsibility, and when credits are required.

Who gets the most value from free AI stem separator

This workflow is useful for creators who need more control than a simple vocal remover gives them. A casual visitor can upload a song, hear whether the separation is good enough, and leave without creating an account. A more serious creator can use the same result to decide whether the stems are worth unlocking. That split is intentional: free preview reduces risk, while paid downloads are reserved for moments where quality matters. StemSlice avoids subscriptions for this reason. Most users do not separate songs every day, so one-time credits that do not expire fit the actual behavior of karaoke makers, remixers, cover singers, DJs, teachers, and short-form video creators better than monthly minutes that reset.

What happens from upload to preview

The upload flow is built around a simple promise: turn a finished song into four usable stems: vocals, drums, bass, and other instruments. Free users can upload MP3, WAV, FLAC, M4A, AAC, or OGG files up to 30MB and 6 minutes, with 3 free processing attempts per day. Paid jobs support files up to 500MB and 20 minutes. After the browser uploads the file, the separation job runs asynchronously and the page polls for status instead of making the user wait on a frozen screen. Once stems are ready, each track can be auditioned in the browser with a waveform preview. Free preview is limited to 30 seconds, which is enough to judge bleed, artifacts, timing, and usefulness before spending a credit.

Output quality, formats, and download rules

Every completed job targets four core stems: vocals, drums, bass, and other. That makes the result more flexible than a two-track vocal remover because the drums and bass can be muted, sampled, studied, or rebuilt separately. Full downloads are gated behind 1 credit per song and are intended to include WAV, FLAC, or 320kbps MP3 output without a watermark. Free users can still use the tool for evaluation and sharing through a low-resolution 128kbps watermarked instrumental path. This keeps the free tier useful without giving away the highest-value files. Failed processing jobs should not consume credits, and unlocked downloads remain tied to the private job rather than being published as public result pages.

Privacy and rights handling

StemSlice treats uploaded music as private user content. Source files and generated stems are not added to the public demo wall, not indexed as separate result pages, and not reused as marketing material. The intended storage policy is short-lived: uploads and results expire after 24 hours through object storage lifecycle rules with a cleanup cron as a fallback. The legal rule is also simple: the separation tool can help you hear or prepare stems, but extracted material still belongs to the original rights holders. Personal practice, study, and private experimentation are different from commercial releases, public distribution, or monetized remixes. Users are responsible for getting permission when the source recording requires it.

Common ways to use free AI stem separator

Typical use cases include DAW remix prep, drum practice, bass transcription, acapella extraction, karaoke edits, and clean reference listening. A singer can make a quick karaoke track and rehearse a difficult section. A producer can lift a vocal hook, check whether a bass line conflicts with a new beat, or study how drums are arranged under a chorus. A DJ can test whether a transition or mashup idea is worth finishing. A teacher can demonstrate how a dense mix is built without asking students to install a DAW. A content creator can preview whether the instrumental is clean enough for a short clip before unlocking the full result. The best source files are studio recordings with clear vocals and reasonable bitrate; live recordings, heavy reverb, crowd noise, and very compressed files can produce more artifacts.

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 is a stem separator?

It's a tool that splits a finished song back into its individual tracks — vocals, drums, bass, and other instruments — so each can be used on its own.

Is this stem separator really free?

Uploading and previewing are free (3 songs a day). Downloading full, high-quality stems uses credits — from $4.9 for 5 songs, and credits never expire.

How many stems do I get?

Four: vocals, drums, bass, and a combined "other" track for everything else.

Will it work on live recordings or lo-fi tracks?

It works best on studio recordings. Live and very low-bitrate sources separate with more artifacts.

What formats can I download?

Lossless WAV, FLAC, or 320kbps MP3.

Is it legal to separate stems from a song I don't own?

The tool itself is legal, but the stems still belong to the rights holder. Get permission before releasing anything commercially.

Stem separator vs. stem splitter — what's the difference?

Just two names for the same thing. Both describe splitting a song into its component tracks.

Related toolsStem SplitterAcapella ExtractorVocal RemoverIsolate VocalsDrum Remover

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