MP3 Cutter is the best application for cutting and merging mp3 files in a convenient and easy way. The app makes it easy to make ringtones and set as default ringtone. Application is designed to make mp3 editing so easy and fun. By using Mp3 Cutter you can: Cut mp3 file and save it to SD card. Merge two or more mp3 files into a single song. Set the edited file as ringtone.