Inbox Creature - A super cute virtual pet, delivered right to your inbox.
X-Minus.pro - X-Minus.pro is an artificial intelligence-based tool that allows you to separate vocals from a song.
HippityPip - Teach phone numbers to kids
VocalRemover.org - Vocal Remover and Isolation. Separate voice from music out of a song free with powerful AI algorithms
Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!
KBIC Vocal Remover - Fast, simple voice removal online