AI Stem Splitter is an online tool that uses Meta AI's htdemucs model to separate any song into up to six clean stems (vocals, drums, bass, guitar, piano, other) for karaoke, remixing, and music production.
What is AI Stem Splitter?
AI Stem Splitter is a web-based audio separation service powered by htdemucs, the hybrid transformer model from Meta AI that won the 2022 Sony Music Demixing Challenge. It takes any audio file (MP3, WAV, FLAC, M4A, AAC, OGG, WEBM) up to 50 MB and up to 20 minutes long, and outputs up to six isolated stems: vocals, drums, bass, guitar, piano, and other instruments. It also accepts YouTube or SoundCloud URLs for direct processing. The service is built by an independent team (not Meta) and offers both free and paid tiers.
Key Features
- 6-stem separation — Splits songs into vocals, drums, bass, guitar, piano, and other, whereas most free tools cap at four stems. Guitar and piano stems use a dedicated 6-stem model (
htdemucs_6s). - Vocal remover & karaoke maker — Remove vocals to create instrumentals or isolate acapellas for remixing, with minimal bleed.
- Direct YouTube/SoundCloud processing — Paste a URL and get stems without downloading or converting the source. Try it.
- BPM & key detection — Every upload automatically detects tempo (BPM) and musical key. Also available as a standalone Key Finder.
- DJ mode with Rekordbox export — Get beat grids, Camelot notation, and one-click Rekordbox XML export for harmonic mixing.
- Waveform preview — Audition any stem in the browser with a synced multi-track player before downloading.
- Lightning-fast processing — Most songs are processed in under 60 seconds via GPU acceleration.
- All major formats — Upload MP3, WAV, FLAC, M4A, AAC, OGG, or WEBM. Download stems as WAV, MP3, or FLAC.
Who is it for?
- Music producers — Sample isolated drums, loops, or melodies from any song for remixes or original productions.
- DJs — Pull clean acapellas for mashups or mix stems with beat-gridded Rekordbox exports.
- Vocalists — Practice harmonies with isolated vocal tracks or learn melodies without backing instruments.
- Karaoke fans — Remove vocals from any song to sing along. Also useful for creating instrumental practice tracks.
What can you do with AI Stem Splitter?
- Remix and mashup — Isolate vocals from one track and combine with the instrumental of another. The YouTube Stem Splitter lets you process tracks directly from URLs.
- Learn songs by ear — Solo the bass or guitar stem to transcribe lines, or loop a phrase to practice bar by bar.
- Create sample packs — Export drum loops, bass lines, or piano riffs as lossless WAV files for use in any DAW.
- Prepare DJ sets — Export stems with beat grids and Camelot key notation for harmonic mixing in Rekordbox.
How does AI Stem Splitter work?
- Upload — Drop an audio file or paste a YouTube/SoundCloud link. No account needed to start.
- Process — The AI splits the track into six stems in under 60 seconds (typical 3-minute song).
- Preview & download — Use the waveform player to mute, solo, and scrub each stem. Download individual stems as WAV, MP3, or FLAC.
Pricing
AI Stem Splitter offers a free trial with 3 minutes of processing (no credit card required). Paid credit packs start at $6.99 for 50 minutes (≈16 songs), $15 for 150 minutes, and $39.99 for 500 minutes. Credits never expire. No subscription is required. View full pricing.
FAQ
Is AI Stem Splitter free?
Yes, you get 3 free minutes to start — enough to process one short track in 6-stem quality. No credit card is needed. After that, you buy credit packs that never expire.
What audio formats and file sizes are supported?
Supports MP3, WAV, FLAC, M4A, AAC, OGG, and WEBM files up to 50 MB and 20 minutes in length. Longer tracks are not supported.
How fast is the separation?
Most songs are processed in under 60 seconds, powered by GPU acceleration. The exact time depends on track length and server load.
Is my uploaded music safe?
Yes. Uploads are processed securely and not shared. The service does not store your files longer than needed for processing.
How does quality compare to other stem splitters?
The service uses htdemucs, the same model that won the Sony Music Demixing Challenge. It produces cleaner separation than typical 4-stem models, with less bleed between vocals and drums/bass, as demonstrated in the spectrogram comparisons on the site.
