Extractune

Extractune splits any song or video into vocals, drums, bass and other parts, free, on your phone or computer. The free split runs on your own device, with no account and no watermark on the audio. Use it to make an acapella, an instrumental or karaoke track, a drumless backing track for practice, or a clean vocal for a remix. Slow a song down, change its key and loop a section while you learn it. Get the lyrics written out, then turn them into a lyric or karaoke video. It also converts video to MP3 and extracts audio from MP4 and other formats. Pro ($4.99 a month, $35 a year, or a $1.99 7-day pass) adds HQ split on a server GPU for cleaner vocals on any phone, with 3 free tries, plus karaoke videos and 1080p lyric videos without the mark.