Are you looking for a quick, web based tool that allows you to convert audio files? Then you should try Switchr.
This site allows you to take any audio file on your computer and convert it to one of the following file types:
- and - iPhone Ringtones!
Once your file is converted, an email will be sent to you with a download link.
Do you have a favorite web tool? Let us know about it! Maybe you can even be a guest contributor.