What can this AI stem splitter separate?
StemZip takes a mixed song and estimates six separate audio parts: vocals, drums, bass, guitar, piano, and other instruments. You can listen to these stems individually or together in the browser mixer. This gives you a closer view of an arrangement without needing the original recording session. The parts are extracted from the audio you upload, so their clarity depends on the recording and how its instruments overlap.
Vocals
Focus on the singing to hear a melody, phrasing, or backing harmony. Solo the vocal stem to study a performance, or mute it when preparing an instrumental mix for practice.
Drums
Hear the rhythmic foundation more clearly. A drum stem can help you follow fills, accents, and groove changes, while a drumless mix leaves room for you to play along.
Bass
Bring the low end forward to study a bass line and how it connects with the drums. You can also leave bass out of an exported practice mix.
Guitar
Listen for guitar rhythm, picking patterns, and lead parts. Several guitars in one recording may share this stem; it does not create an individual track for every guitarist.
Piano
Isolate the estimated piano part to explore chord voicings, accompaniment, and melodic details. Other keyboard sounds may remain in the other stem, depending on their sound and the arrangement.
Other instruments
This stem collects remaining musical material, such as strings, synthesizers, or percussion that is not assigned elsewhere. It is a useful part of the mix, rather than an extra named instrument.
How to use the stem splitter
Sign in and choose your audio
Create an account or sign in, then drag an audio file into the upload area or use Choose File. Pick a recording you are allowed to process and check its size and duration before uploading.
Follow the separation progress
After uploading, the song moves through processing and saving. Processing time varies with the recording and service demand. Keep the page open while it runs; the song library also shows your saved songs and their current status.
Listen, adjust, and download
When the six tracks are ready, open the mixer. Use solo, mute, and volume controls to compare parts. Seek through the waveforms or bottom progress bar, then download a stem or export a supported mix.
Supported audio formats, limits, and downloads
You can upload MP3, WAV, M4A, AAC, FLAC, and OGG audio. Each file must be no larger than 50 MB and no longer than 10 minutes. Both limits apply: a short uncompressed recording can still exceed the size limit. If needed, export a shorter selection from your audio editor before uploading.
Individual separated stems download as MP3 files. The export panel also offers MP3 or WAV for a selected stem or mix. A WAV export does not restore details lost in a compressed source or make the separation identical to the original studio tracks. Choose a format that suits your next editing or listening step.
Use separated stems for practice and creative work
Build a practice backing track
Choose a mix without vocals, drums, bass, guitar, or piano to leave space for your own performance. Start by listening to the full song, then compare it with the version that leaves your part out.
Explore an arrangement
Solo different stems to hear how rhythm, harmony, and melody fit together. Lower louder parts to focus on a quieter line. This can support transcription, rehearsal, or a closer listening session.
Prepare material for an edit
Download useful stems for a music editor or digital audio workstation. They can serve as starting material for an authorized remix or demo. Audition the exported files in context before using them in a larger project.
What will the separated audio sound like?
The mixer displays six named waveforms with a shared playback position. A sparse or quiet waveform may simply mean that the recording contains little of that instrument. Separation estimates sound sources from a finished mix; it does not recover the original multitrack session.
Expect results to vary. Reverb, distortion, doubled vocals, and instruments sharing similar frequencies can leave sound from one part in another stem. Listen both in solo and inside your intended mix. Keep the original recording for comparison, and avoid repeatedly compressing it before separation.
Choose the cleanest version available. A noisy phone recording, clipped audio, or a file that has been repeatedly re-encoded can make it harder to separate parts. Turning a low-quality file into a larger format does not recreate missing detail. If you have several versions, compare a short passage before choosing the recording you want to work with.
Stem splitter questions and answers
Is StemZip free to try?
Each account receives two free song separations in total after registration. This allowance does not reset daily or monthly. Check the remaining allowance shown for your account before starting another song.
How do I extract vocals or make an instrumental?
Separate the song, then solo the vocals to hear them on their own. Download the vocal stem for separate editing. To make an instrumental, use the vocalless export option and listen to the result before sharing or performing with it.
Does it work with every recording?
The six-stem model estimates the same categories for each song. Recordings with unusual sounds or dense arrangements may produce less distinct parts. If an instrument is absent, do not expect that stem to contain a new performance.
What if an upload or audio track fails?
Check your connection, file format, size, and duration. If a completed song shows an audio loading error in the mixer, try Retry audio to reload the track. A playback download error does not by itself mean you need to separate the song again.
Can I use a separated song publicly?
Check permissions with the relevant rights holders before sharing or distributing an edit. StemZip does not supply music licenses or decide whether a particular use is permitted.
Do I need to install music software?
You can upload, separate, audition, and download audio in the browser. A separate audio editor is useful when you want to arrange the downloaded stems, add your own recording, or do more detailed production work.
Will I receive MIDI files or sheet music?
The results are audio recordings, not MIDI notes or a written score. You can listen closely to a separated part when working out a melody or rhythm, but automatic notation is not part of this stem splitter.