You can make great karaoke songs using these free apps mentioned below: Audacity: Audacity, which is available as a free download for Windows and Macs, offers a simple way to reduce vocals on a digital song file and create a Karaoke version of your favorite song.  Pro Tools: Avid Pro Tools, similar to Audacity, provides tools that you can use to perform vocal canceling by inverting one half of a track to create free Karaoke songs. FL Studio: FL Studio is a great program for beginners. It has a few tools that you can use to reduce vocals through the audio canceling method to create great party songs.