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.
Song Cutter and Ringtone Maker - Free Online Ringtone Maker
Ringer - Choose any non-protected file from your iTunes library or any media file on your system and turn it...
MakeOwnRingtone.com - Make your own ringtone! Follow the steps:
Ringer.org - Ringer.org is a free ringtone maker to make ringtones from any song or audio file.
Switchr.net - Switchr is a free online audio converter site that lets you convert audio files on the fly.