About StemSplitterLab
A practice tool that stays on the device
StemSplitterLab splits a song into parts so you can practice one of them. You open a file you already have. The browser separates it into vocals, drums, bass, and other, and you mute the part you do not want to play. You can also loop a phrase, slow it down without changing the pitch, or move the pitch without changing the speed.
The reason for building it this way is simple. Practicing a part should not mean sending the song to someone else’s computer. The work happens in the tab. The first time you separate a song, the browser downloads a model file and keeps it locally. After that, further songs reuse it.
The site is free to use. There is no account. Songs you open are kept in a library in this browser until you delete them. Closing the laptop does not upload them on the way out.
What this site will not pretend
The separator has four stems, not a stem per instrument. A guitar shares Other with piano and keys. The guitar remover says that plainly, because a page that promised a guitar-only stem would be describing a different model.
Tempo and key are estimates. A drumless mix can still contain cymbal wash. A vocal mute can leave a reverb tail. Those limits are written on the tool pages because they change how you practice, not because they are footnotes.
The how it works page names the model and the licenses. The privacy page says what stays local. If something on the site is wrong, the contact page has an email address.
Last updated 28 September 2026