TunesKit DRM Audio Converter is the perfect solution for this problem. With just a few clicks, you can delete any and all protections that keep you from sharing your music or playing it on devices without iTunes. Using this application is really easy: just open the program and drag your songs to the window. Once you have all the songs in the application, all you have to do is click 'Convert' for the conversion process to start. In just a few seconds, you'll have your favorite songs free of DRM.
The best thing about TunesKit DRM Audio Converter is that, in addition to effectively getting rid of DRM, it also offers you the ability to convert the format of any audio file without losing playback quality in the process.
The trial version only lets you convert a limited number of files.