Split Into Stems
Pull a track apart into vocals, drums, bass and everything else.
Pull a track apart into vocals, drums, bass and everything else. Free, with no sign-up, no watermark and no upload: it all runs in your browser.
What Split Into Stems is for
Four parts rather than two: the vocal, the drums, the bass and everything left over. This is the version you want when the question is about the arrangement rather than the singer — working out a bassline by ear, practising along with the drums removed, pulling a drum break out to sample, or checking what a mix is actually doing underneath the vocal. It runs four networks instead of two, so it takes roughly twice as long and downloads about 76 MB, and like everything else here it does it on your own machine.
How to use it
- Add your files. Drop them on the page or choose them. They stay on your device.
- Set the output format and quality. The defaults suit most files.
- Press convert and save the results, individually or as one ZIP.
Questions
What is in the "other" stem?
Everything that is not voice, drums or bass: guitars, keys, strings, synths, horns. It is the remainder rather than a category, so on a sparse track it can be nearly empty and on a dense one it carries most of the arrangement.
Should I use this or the two-stem version?
If you only want the vocal gone or the vocal alone, use Separate Voice and Music — it is faster, and splitting into four parts and recombining three of them is worse than asking for two in the first place. Use this one when you want the drums or the bass separately.
Do the four stems add back up to the original?
Very nearly. Each frequency is divided between the four rather than copied, so playing all four together gives you back something extremely close to what you started with. That is also why a mistake in one stem shows up as a leak into another.
Why does the bass stem sound muffled on its own?
Because it mostly is. A bass part has very little energy above a few hundred hertz, so heard alone it sounds dull in a way it never does in the mix. That is the instrument, not the separation.
Can I use these commercially?
The tool imposes nothing, but the recording still belongs to whoever made it. Separating a track does not change who owns it, and a stem taken from a commercial release is still that release. Clear samples the way you would have to anyway.