Extract individual instruments from any song for remixing and practice
Create karaoke tracks or instrumentals by removing vocals cleanly
Extract drum tracks for remixing or practice with Demucs AI
Separate bass lines and guitar parts for learning or remixing
Get vocals, drums, bass, guitar, piano, and other lead as individual tracks
High-quality stems ready for remixing and production
Analyze and learn from your favorite songs by isolating parts
MP3, WAV, any format • Stays 100% private
Vocals, drums, bass, guitar, or everything
High-quality separation • Kit pieces • Piano hands • Export anywhere
Start your 3-day free trial, or contact us for team pricing
Built for schools & teams
Split drums into kick, snare, toms, and cymbals with individual volume control, then turn the performance into MIDI and printable drum notation in one pass.
State-of-the-art piano AI captures left/right hands plus sustain pedal events with 91% pedal accuracy. Watch the demo to hear the dramatic before/after difference.
Pro members get immediate access to all new features as they launch. We're constantly improving with new AI models and capabilities.
"The demixing was very good, and much better than I was getting with RX 10. Thank you for giving me this chance to try the PRO version."
"Your platform is the best music score generator I've found, and it keeps getting better with every update."
"I demixed the tracks with your app for my latest production project. The results were fantastic!"
Our AI can separate vocals, drums, bass, guitar, piano, and other lead from any song. Pro users get the highest quality separation.
Choose between WAV 24-bit (professional quality) or FLAC 16-bit (50% smaller files). Both maintain excellent audio quality.
We use Demucs, the Sony Music Demixing Challenge winner. Strong drum and bass separation, clean vocal removal.
You can use stems for personal projects, practice, and learning. Commercial use requires appropriate licenses from the original copyright holders.
Music Demixer works best on modern computers with up-to-date web browsers. WebGPU in the latest Chrome, Edge, or Safari gives the best results. Use our compatibility check or visit the full guide to see if your setup is ready.
Join thousands of producers unlocking professional stems, drum notation, and MIDI exports.
Stem separation extracts individual instruments from mixed recordings using AI. Our stem splitter uses Demucs, the Sony Music Demixing Challenge winner, to separate vocals, drums, bass, guitar, piano, and other instruments from any song.
Stems are individual instrument tracks from a mixed song - vocals, drums, bass, and harmonic instruments. Stem separation uses AI to extract these elements from a finished stereo mix, reverse-engineering the original multitrack recording.
The AI analyzes audio in time and frequency domains to separate overlapping instruments like bass guitar and kick drum, or piano and guitar chords that share similar frequencies.
Old methods used phase cancellation and frequency filtering, creating artifacts and poor results. Modern AI uses deep learning trained on thousands of songs.
Demucs processes music through multiple layers:
Remixing: DJs and producers create remixes without original multitracks. Extract drum loops, bass lines, or vocal melodies for electronic music production.
Sampling: Hip-hop producers extract drum breaks and samples from records. Preserve transients and groove for beat making.
Practice & Performance: Musicians remove their instrument to play along. Create backing tracks or karaoke versions.
Audio Repair: Fix mixed recordings by isolating problematic elements. Remove unwanted instruments or realign timing.
Separating drums from bass is challenging due to frequency overlap. Demucs handles this well:
Low Frequencies: Distinguishes kick drum from bass guitar despite sharing frequency range. Preserves attack transients and fundamental tones.
Cymbals: Separates hi-hats, crashes, and rides while maintaining their decay characteristics.
Kit Cohesion: Preserves ghost notes, cross-stick patterns, and polyrhythms as musical phrases.
Demucs vocal separation works better than old center-channel cancellation methods:
Vocal Removal: Creates karaoke tracks while preserving stereo width and reverb.
Vocal Isolation: Extracts vocals with reverb intact for remixing or sampling. See our vocal remover for specialized tools.
Harmonies: Distinguishes lead vocals from harmony parts in complex arrangements.
Standard (4 stems): Vocals, Drums, Bass, Other (guitars/keys/strings)
Extended (6+ stems): Adds Piano, Guitar, Winds, Strings as separate tracks (Pro users)
Demucs won Sony's Music Demixing Challenge using hybrid transformer architecture:
WAV: 24-bit depth for full dynamic range
FLAC: 50% smaller files, lossless quality
All processing happens in your browser using WebAssembly. Your files never leave your device - no uploads, no servers, no waiting.
Stems work with all major DAWs: Ableton, FL Studio, Logic, Cubase, Pro Tools. Files are properly named for easy import.
We combine Demucs AI with browser privacy and sheet music conversion - separate stems AND get notation.
Ready to split your music? Try the stem separator and extract individual instruments from any song.