Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Song Cutter and Ringtone Maker - Free Online Ringtone Maker
Video DownloadHelper - Browser extension to download videos from the Web
MakeOwnRingtone.com - Make your own ringtone! Follow the steps:
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
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.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.