UltraStar Deluxe - A free and open source karaoke game inspired by the Singstar™ game, runs on Windows, Linux and macOS.
KaraFun - KaraFun is the best online karaoke. Over 35,000 karaoke songs, with studio quality, at home or on the go. Regular updates. Free demo!
Yokee - Karaoke to YouTube videos
OpenKJ - Open source cross platform karaoke hosting software
Online Karaoke Pro - Online Karaoke Pro the newest and trendiest online based karaoke website where you can sing...
MidiCo Karaoke - Karaoke software for Apple macOS. MidiCo karaoke for Mac allows you to host and manage a professional karaoke show supporting all standard karaoke file types.