AudioRetoucher - AudioRetoucher is a tool for analyzing music, changing tempo and pitch in real time
X-Minus.pro - X-Minus.pro is an artificial intelligence-based tool that allows you to separate vocals from a song.
Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.
VocalRemover.org - Vocal Remover and Isolation. Separate voice from music out of a song free with powerful AI algorithms
Guitaa.com - Turn ANY song into chords, play along with interactive chords and diagram, transpose, loop, tempo control.
KBIC Vocal Remover - Fast, simple voice removal online