Ringtone Maker Pro

Ringtone Maker Pro is a handy iPhone ringtone maker which lets you create unique iPhone ringtones from many sources.

You can drag popular video, audio files and movies in a variety of formats like MP3, WAV, MP4, AVI, etc. directly from iTunes, and then make your own ringtone in the zoom-in-and-out timeline for a precise ringtone length.
There is no limit to the ringtones you can make, and all the created iPhone ringtones will be auto added to iTunes for easy sync with Apple gadgets like iPhone, iPod, iPad and more.