UltraStar Deluxe - A free and open source karaoke game inspired by the Singstar™ game, runs on Windows, Linux and macOS.
Yokee - Karaoke to YouTube videos
Smule - Smule is the social singing app that lets you enjoy millions of karaoke songs. Connect with your friends from all over the world or sing with top artists!
Karaoke 5 - karaoke 5 software - Excellent Player and Creator of file Karaoke. Karaoke. Professional karaoke program. Free karaoke program.
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!
Karaoke Player - KaraFun Player is the most advanced karaoke player: cool animations, pitch & tempo change, live effects, backing vocals...