In this post, let me share an easy way of making free ringtones for your iPhone 5. You don’t have to download any third-party app to get it done. All you need is iTunes.
Launch iTunes, find and select the song you want to make a ringtone out of in iTunes
Right click on the song name and select Get Info, then click on the Options tab
Select the playback period of the song that you want to ringtone to be, make sure it’s 30 seconds or shorter
Learn more: http://videoconverterapp.com/convert-video/make-free-ringtones-for-iphone5/