A free program for Android, by GDInt.

Mp3 Cutter Ringtone Maker is a utility that allows you to easily cut and create your own ringtone, notification, alarm, and music file from your favorite song.

It is a simple and fast way to create custom ringtones for your Android device. You can choose from a wide range of music and audio formats, including mp3, wav, aac, amr, ogg, flac, m4a, mp5, m4b, ogm, wma, wav, and many more.

There are two main modes: the editing mode and the preview mode.

In the editing mode, you can cut the audio from the beginning, the middle, or the end of the file. You can also cut the audio into several smaller pieces.

In the preview mode, you can preview the audio before you cut it.