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.
Getyt - Getyt.eu is the fastest YouTube to mp3 & mp4 conversion website.
Pazera Free Audio Extractor - Free audio converter and extractor of audio tracks from video files
4K Video to MP3 - 4K Video to MP3 helps to get audio from any video you want just in one click.
fre:ac - fre:ac is a audio converter and CD extractor designed for Microsoft Windows, Mac OS and Linux, distributed under the GNU General Public License.
GetVideo.at - Allows to download videos from popular video streaming sites. No need for installation.