Stems are the parts of a song as separate audio files. This tool makes four: vocals, drums, bass, and other (guitars, keys, synths and everything else). Played together, the four add up to the original song.

How do I make a drumless or bassless track to play along with?

Split the song, then under Make your own mix untick Drums (or Bass) and press Build mix. You can listen to the result and save it as a WAV file. Any combination works, for example drums and bass only for a rhythm-section track.

How good is the separation?

Good enough for practice, remix ideas and transcription on most pop and rock songs. It is not perfect: you may hear some bleed, for example a little piano in the bass stem or a lead guitar in the vocals. The model is Deezer's open-source Spleeter, the same one many desktop tools use.

No. The song is decoded, separated and encoded on your device. The only download is the AI model itself (about 38 MB), once; after that it is cached in your browser.

How long does it take?

On a laptop, expect roughly half the length of the song, plus a few seconds to make the MP3 files. Phones are much slower, so use a computer for long songs. Songs up to 15 minutes work on a computer and up to 6 minutes on a phone.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Are my files uploaded?

No. Your files are opened and processed inside your browser and are not sent to LibraTool. Some tools first download a processing engine or AI model to your browser; that download contains no data of yours.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install. Very large files can be slow or run out of memory on a phone, so use a computer for those.

🎚️

Free Stem Splitter (Vocals, Drums, Bass)

Split a song into four stems — vocals, drums, bass and other instruments — with an AI model that runs in your browser. Download each stem as MP3 or WAV, or make a drumless or bassless practice mix. Your music is never uploaded.

File size depends on your deviceFiles stay privateNo login requiredFree foreverOne-time 94 MB download (AI model and engine)AI separationVocals · Drums · Bass · Other

Many stem splitters upload your song and give a few free minutes before a subscription. Here the AI runs on your device.

Split any song into vocals, drums, bass and other instruments with AI that runs on your device, then download the stems or a mix without your instrument. No upload, no sign-up.

Drop a file here, or click to browse

MP3, WAV, FLAC, OGG, M4A, MP4, MOV, WebM, MKV, M4V · processed on your device

or press Ctrl+V to paste from your clipboard

Browse files

Your files never leave your device. All processing happens locally in your browser.

🔒 Processing happens entirely on your device — your music is never uploaded.

How It Works

Splits a song into four stems — vocals, drums, bass and everything else — with Spleeter 4-stems, Deezer's open-source separation model, running in your browser. You can also rebuild the song with any stems left out.

1
Add a song
MP3, WAV, M4A, FLAC, OGG, or a video (its sound is extracted). It is decoded on your device at 44.1 kHz; mono works too.
2
The model listens
In a background worker the song is cut into overlapping 12-second parts. For every frequency and every 23 ms, the model estimates how much belongs to the voice, the drums, the bass and the rest. It downloads once and is cached.
3
Four tracks are rebuilt
Each frequency is shared between the four stems in those proportions and turned back into sound, so the stems add up to the original.
4
Listen, mix and download
Play each stem, save it as MP3 or WAV, or pick the stems you want and save that mix. Nothing is uploaded.

Processing happens entirely on your device — your music is never uploaded.

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