Audio Splitter
Split a song into stems and get its tempo and key, for reference or remixing. Everything runs on your device: your audio is never uploaded.
Tip: open this page on its own to use every CPU core and split faster.
1 Choose a song
Got a YouTube or SoundCloud link? Downloading from links needs a server, which this free, private, in-browser version doesn't use. Save the audio first, then drop it here.
2 Split into
3 Your stems
Play everything together: M mutes, S solos, FX opens EQ, compression and pan. Lines on the waveforms are bars and beats; click to jump, or set a loop. Space plays and pauses. The residual holds anything the AI missed, so all stems together equal your original mix exactly.
TempoBPM
Key
Camelot