HandBrake - HandBrake allows users to easily convert video files into a wide variety of different formats.
Song Cutter and Ringtone Maker - Free Online Ringtone Maker
Format Factory - Format Factory is software that allows the user to convert media into various file formats. The software is a product of PC Free Time, a Chinese software development company. Read more about Format Factory.
Audiko - Audiko Ringtones is a free to use mobile application that can help you customize your mobile phone by setting the most beautiful images your background and the most popular ringtones as your notification signals.
File Converter - Convert & compress everything in 2 clicks!
MakeOwnRingtone.com - Make your own ringtone! Follow the steps: