Split a song into 4 stems
Upload a song and get four WAV files: vocals, drums, bass, and everything else. A neural network separates the instruments on our server — no DAW and no plugins.
Two modes
| Mode | Files | Account |
|---|---|---|
| 4 stems | vocals, drums, bass, other | Free account |
| Vocals + instrumental | vocals, instrumental | Not needed |
Only need the instrumental? The vocal remover page is the same tool set to two files.
What you get
| Item | Details |
|---|---|
| Format | WAV files in a zip |
| Song length | Up to 7 minutes |
| Storage | Kept for 24 hours, then deleted |
Free limits
| Who | Free every day |
|---|---|
| No account | 2 songs, vocals + instrumental only |
| Free account | 3 separations, 4 stems included |
| Account, beyond the free limit | 1 credit per song, charged only on success |
The widget above shows how many free separations you have left today.
What stems are good for
- Drumless and bassless tracks: mix the other three stems in any audio editor to play the drums or the bass yourself.
- Learning a part: hear the bass line or the drum pattern without the rest of the mix.
- Remixes and mashups: drums and bass apart from the harmony, a cappella apart from the beat.
- Karaoke and covers: the instrumental without the voice.
An honest note on quality
Neural separation is not the original multitrack recording: each stem is estimated from the finished mix. On most songs the stems sound clean in context; on dense mixes, faint artifacts or a little bleed between instruments can remain, and they are most audible when a stem plays on its own. Guitars, keys, synths and strings all go to the “other” stem.
Next steps
- Change the key of the instrumental: −6 to +6 semitones, tempo kept.
- Master a new mix of the stems in the lab: one free master every day, no account needed.
- Want a version without drums or bass? Remove drums and bass shows which stems to mix.
Which stems do I get?
Four WAV files in a zip: vocals, drums, bass, and other (guitars, keys, synths and everything else). In the vocals + instrumental mode you get two files: the vocals and everything except the vocals.
Do I need an account?
For 4 stems, yes: a free account gets 3 separations a day, 4 stems included. The vocals + instrumental mode also works without an account, 2 songs a day.
What does it cost beyond the free limit?
1 credit per song, charged only when the separation succeeds. A failed run is not charged.
How long does it take?
Processing time grows with the length of the song, and a busy queue adds a wait.
Can I make a drumless or bassless version?
Yes. Split the song into 4 stems, then mix the stems you want in any audio editor or DAW: leave out the drums for a drumless track, or leave out the bass for a bassless one.
Are the stems as good as the original multitracks?
No. Neural separation estimates each instrument from the finished mix. On dense mixes, faint artifacts or a little bleed between stems can remain, most audible when a stem plays alone.
How long are the stems kept?
24 hours, then they are deleted. Download the zip before then.