Stem splitter
Upload a song and get back four tracks: the drums, the bass, the vocals and everything else. Mute and solo them to hear how the record was built, download them, or send one straight to the studio to chop into an instrument of your own.
Splitting a song takes several minutes of work on our machines, so this one tool comes with the paid plans. Your stems land in your account as private samples.
Sign in to split a song Plus: 30 songs a month. Pro: 100 songs a month. The song you upload is deleted once it is split.In a studio, a song is recorded as many separate tracks and then mixed down to one stereo file. A stem is one layer of that mix put back on its own: all the drums, or all the vocals. Producers trade stems so that someone else can remix a song without the original session. When you only have the finished song, a stem splitter is a program that tries to undo the mixdown.
It should not be possible. Once sounds are added together, the separate parts are gone, the way you cannot take the eggs back out of a cake. What a modern splitter does is guess, very well. It is a neural network that has listened to thousands of songs alongside their real stems, and has learned what a snare, a bass guitar and a human voice look like inside a mix. Given your song, it rebuilds what each of those most likely sounded like alone.
Because it is a guess, it leaves marks. You may hear a ghost of the vocal in the drum stem, cymbals that swirl like they are under water, or a bass that loses its top end. These are called artefacts. They are most obvious when you solo one stem, and they mostly vanish when stems are played together or tucked into a new beat, which is how they are normally used.
Practice: drummers and bassists mute their own instrument and play along. Study: solo the bass of a song you love and you will learn more about basslines in three minutes than in a week of reading. Sampling: take two bars of drums, chop them into slices and replay them in a new order, which is how a great deal of hip-hop and dance music began. Only split music you have the right to use. Anything you make here with imported audio stays private or link only, and is never listed publicly.
No. Every split costs us several minutes of computer time, so it comes with the paid plans, each with a monthly allowance. Paid plans are not open yet, and the page has a waitlist. Every other tool here runs in your browser and is free, including the sample chopper.
No. The song you upload is deleted as soon as it has been split, or if the split fails. The four stems are kept as private audio samples in your account, visible only to you, until you delete them.
Good enough to study, practise with and sample. Not good enough to pass for the original studio tracks. Drums and bass usually come out cleanest. Dense mixes, heavy reverb and distorted guitars are the hardest, and you will hear some bleed between stems.
Listen to them, download them, and open any of them in the studio as a sliced sample instrument to build a new beat around. If the song is not yours, keep what you make with it to yourself: songs here that contain imported audio can be shared by private link only.
The studio has this and everything around it: instruments, recipe blocks, an arranger, and a co-producer that explains every change it makes. Free to start, private until you share.