Portable means does not requires any installation, just run the .exe file and you can choose desired part for your MP3 song to be saved separately.
You can apply fade in or fade out effect.
Pros:- easy to use
- includes player for MP3
Cons- only MP3 files are supported for open and save.
Small and fast application that let you to cut small part from a big .mp3 music file in order to use it as ringtone. If your mobile device doesn't support .mp3, you can use an audio converter to transform it to desired file extension.