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AI Stem Splitter

Split any song into individual stems: vocals, drums, bass, guitar, piano, and more. Powered by state-of-the-art AI for music production, remixing, and practice.

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Upload Music Track

3-5 credits per song

Drag & drop your file here, or browse

Supports MP3, WAV, FLAC, OGG, M4A. Max 50MB. Songs up to 10 minutes.

file.mp3

0 MB
— or record from your microphone —
00:00

Stem Splitting Settings

Meta
Use WAV or FLAC if you plan to import stems into a DAW for further editing and mixing.
Free 2-stem splitting available

Splitting your track into stems...

Using Demucs v4 for 4 Stems
Stem Splitting Complete

Vocals

0:00 0:00

Drums

0:00 0:00

Bass

0:00 0:00

Guitar

0:00 0:00

Piano

0:00 0:00

Other

0:00 0:00
Stems Created 4
Avg SDR 7.8 dB
Song Duration 4:12
Processing Time 18.3s

What Are Audio Stems?

Audio stems are the individual instrument or vocal tracks that make up a song. Professional music is typically mixed from dozens of individual tracks, but stem splitting uses AI to reverse-engineer the mix and extract the primary components.

Vocals Singing, rapping, harmonies, backing vocals, ad-libs
Drums Kick, snare, hi-hats, cymbals, toms, percussion
Bass Bass guitar, synth bass, sub bass, 808s
Guitar Electric guitar, acoustic guitar, ukulele (6-stem)
Piano Piano, keys, organ, synth pads (6-stem)
Other Everything else: strings, brass, synths, effects

Model Details

Recommended Demucs v4

Meta AI

Stems: 2, 4, or 6 | Speed: Medium | Quality:

Free Spleeter

Deezer

Stems: 2 or 4 | Speed: Fast | Quality:

Tips for Best Results

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How AI Stem Splitting Works

Our deep learning models analyze the spectral and temporal patterns in your music to isolate individual instrument groups with remarkable precision.

Step 1

Upload Your Track

Drag and drop your music file in any common audio format. We accept MP3, WAV, FLAC, OGG, and M4A files up to 50MB. For best results, use lossless formats like WAV or FLAC. Your file is securely processed on our GPU servers and automatically deleted within 1 hour.

Step 2

AI Separates Each Stem

The neural network converts your song into a time-frequency representation and applies learned separation masks for each instrument group. Demucs uses both time-domain waveform processing and spectrogram analysis with transformer attention to cleanly separate overlapping frequencies between instruments.

Step 3

Preview & Download Stems

Each extracted stem gets its own audio player so you can preview individual instruments in isolation. Solo or mute specific stems to hear how they interact. Download each stem separately or grab all of them in a convenient ZIP archive ready to import into your DAW.

Stem Splitting Use Cases

AI-powered stem splitting is revolutionizing music production, education, and creative workflows across the industry.

Music Production & Remixing

Extract individual stems to create remixes, mashups, and new arrangements. Sample drum patterns, bass lines, or vocal hooks from existing recordings. Layer stems from different songs to create unique productions. Essential for producers working with reference tracks or creating official remixes.

DJ Sets & Performance

Prepare stems for live DJ sets and performances. Create acapella drops, isolated drum breaks, and bass-only versions for creative blending. Build transition tracks that seamlessly connect songs. Mix vocal stems from one track over the instrumental of another for unique live mashups.

Practice & Study

Isolate specific instrument parts to practice along with. Drummers can mute the drum track and play along with the rest of the band. Bassists can isolate the bass line to study technique. Guitarists can extract guitar parts to learn solos and chord progressions by ear.

Music Education

Break down songs into components for music theory analysis. Help students understand how instruments interact in a mix. Demonstrate arrangement techniques by showing how each stem contributes to the final song. Create custom practice tracks for music classes.

Sampling & Sound Design

Extract clean samples from any recording for use in new productions. Isolate one-shot drum hits, bass tones, vocal chops, and musical phrases. Build sample packs and sound libraries from existing recordings. Create unique textures by processing individual stems through effects chains.

Film & Media Post-Production

Extract music stems for film and TV post-production. Adjust the balance between vocals and instruments in soundtrack mixes. Create instrumental versions of licensed music for background use. Isolate specific elements for sound design and Foley work in video production.

Karaoke & Cover Versions

Create perfect karaoke backing tracks by removing vocals. Record your own vocals over the original instrumental arrangement. Use drum and bass stems as a rhythm section backing track for acoustic performances or band rehearsals. Build custom backing tracks for live shows.

Audio Analysis & Transcription

Isolate stems to create accurate musical transcriptions. Hear individual instrument parts clearly for notation purposes. Analyze mixing techniques by studying how each stem is processed. Perfect for musicologists, transcription services, and arrangement analysis.

The Most Powerful Free Stem Splitter Online

Up to 6 Stem Separation

While most online stem splitters only offer 2 or 4 stem modes, TTS.ai supports 6-stem separation that individually extracts vocals, drums, bass, guitar, piano, and other instruments. This granular separation is powered by Demucs v4

Free 2-Stem Splitting

Get started for free with Spleeter-powered 2-stem separation. Split any song into vocals and instrumental without creating an account or spending credits. The free tier has no watermarks, no quality restrictions, and no daily limits. Upgrade to access 4 and 6 stem modes with Demucs for maximum quality and instrument granularity.

GPU-Accelerated Processing

Stem splitting is computationally intensive, especially with 6 stems. TTS.ai runs all models on dedicated NVIDIA GPUs for fast, consistent processing. A typical 4-minute song is split into 4 stems in under 20 seconds with Demucs, or under 5 seconds with Spleeter. The 6-stem mode typically takes 30-45 seconds depending on song complexity and length.

REST API for Batch Processing

Process entire music libraries programmatically with our developer API. Build stem splitting into your own applications, music production tools, or DJ preparation workflows. The API supports all stem counts, both Demucs and Spleeter models, and multiple output formats. Available on Pro and Enterprise plans with Python, JavaScript, and cURL SDKs.

Frequently Asked Questions

Stem splitting separates a mixed audio track into individual components (stems): vocals, drums, bass, and other instruments. This is invaluable for music production, remixing, sampling, transcription, and karaoke.

Demucs supports 2-stem (vocals + instruments), 4-stem (vocals, drums, bass, other), and 6-stem separation. Spleeter offers 2-stem and 5-stem (vocals, drums, bass, piano, other) separation.

Demucs (Meta AI) produces higher quality separation and is recommended for most use cases. Spleeter (Deezer) is faster and works well for quick separation tasks. For professional results, use Demucs.

Demucs v4 achieves state-of-the-art separation quality, producing clean individual stems suitable for professional remixing and production. Some bleed-through between stems is normal, especially on heavily layered mixes, but quality is excellent for most applications.

Processing time depends on the track length and number of stems. A typical 4-minute song takes 20-60 seconds for 4-stem separation with Demucs. Spleeter is faster at 10-30 seconds but with slightly lower quality.

The stem splitting tool itself can be used commercially. However, you must have the rights to the original audio. Separating copyrighted music does not grant you new rights to the individual stems — copyright still applies to the source material.

Batch processing is available via our API, allowing you to submit multiple tracks for stem separation in an automated workflow. The web interface handles one track at a time with instant preview and download of all stems.

The 4-stem and 6-stem modes include an "other" category that captures guitars, synths, keyboards, and other instruments grouped together. For piano-specific separation, use Spleeter's 5-stem mode which includes a dedicated piano stem.

Yes, each stem is exported as a separate audio file that can be imported into any DAW (Ableton, Logic Pro, FL Studio, etc.) for remixing. Adjust levels, add effects, or replace individual stems to create new arrangements.

Stem splitting uses 2 credits per track processed. Free accounts receive 50 credits on signup. All paid plans include generous credit allowances for regular use.

We accept MP3, WAV, FLAC, OGG, M4A, and WEBM files up to 50MB. For best separation quality, upload lossless formats (WAV, FLAC). Output stems are provided in WAV format to preserve maximum quality.

Our tool uses Demucs v4 by Meta AI, which is consistently ranked as the best open-source audio source separation model. It outperforms older spectral methods and most competing AI tools in independent blind listening tests.
5.0/5 (1)

Split Any Song into Stems for Free

Join thousands of musicians and producers using TTS.ai. Free 2-stem splitting available now. Get 50 credits with a free account for 4 and 6 stem modes.

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