About Demixly

Demixly is a set of AI audio tools for anyone who works with music: singers, musicians, DJs, teachers and video creators. Remove vocals, split a song into stems, change the key, find the BPM or turn audio into MIDI — all in one place, right in your browser.

What you can do

  • Separate a song into vocals and instrumental, or into vocals, drums, bass, guitar, piano and more.
  • Change the key and tempo, cut and join tracks, add effects.
  • Find the key, BPM and chords, turn audio into MIDI, transcribe lyrics.
  • Sing karaoke over any song and record your own cover.

How it works

Demixly is built on proven open-source technology: Demucs for source separation, Basic Pitch for audio to MIDI, Whisper for lyrics and SoundTouch for pitch and tempo. Many tools run entirely in your browser, so your file never leaves your device; the others process it on our server.

Privacy first

Uploaded files are deleted automatically after processing, and we never use your files to train AI. Signing in with Google is optional and only used to keep your history. Details are in our Privacy Policy.

Who we are

Demixly is an independent project made in Vietnam, available in 9 languages. Ideas, bug reports or partnership questions are always welcome at [email protected].