Youtubemp3.to!

Augmentable with front-ends such as Youtube-DLG , youtube-dl is a small command-line program to download videos from YouTube and a hundreds other sites. It requires the Python interpreter and is therefore platform-independent.

Freemake Video Converter is video converter that lets convert videos to avi, wmv, mp4 (iPhone, iPod, iPad, PSP, xBox), 3gp, rip dvd, extract mp3, burn DVD and Bluray, create photo slideshow and audio visualization, cut, join, rotate and upload videos, photos and music to YouTube.

A cross platform front-end GUI of the popular youtube-dl written in wxPython.

Freemake Video Downloader is a free video downloader that lets download videos from YouTube, Google, Facebook, Dailymotion and other sites either in HD, 4K, MP4, FLV, 3GP or convert web videos to FLV, AVI, MP4, MP3.

ClipGrab is a free downloader and converter for YouTube, Vimeo, Metacafe, Dailymotion and many other online video sites.It converts downloaded videos to MPEG4, MP3 or other formats in just one easy step.Downloaded videos can be converted to the following file formats: WEBM, WMV, MPEG4, OGG Theora, MP3 (audio only), OGG Vorbis (audio only).

Peggo.tv is a Digital Video Recorder (DVR) that records MP3s of your favorite YouTube videos and SoundCloud tracks.

Youtube Video and Audio Downloader is an open-source project, downloading Youtube videos (using Firefox download manager) in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the original audio file out of FLV videos. It also shipped with an offline tool to extract audio files out of FLV videos.

- SYLoader supports YouTube, Facebook, Vimeo and Dailymotion.- You can download in MP3, MP4, AVI, OGG and OGV formats- Automatic update of YouTube-DL

Download YouTube music from your browser and save it in MP3, M4A or OGG with the best possible quality.

With VideoGet you can easily download YouTube videos. VideoGet also supports downloads from more than 850 other video websites, including popular YouTube, MySpace, Google Video, Yahoo Video, MetaCafe, etc.

Download videos from web sites like Youtube, Dailymotion, Google, Yahoo!, Metacafe, Spike, Megarotic, Yahoo!, CBS, Comedycentral, MyPlay, Globo, RTVE, etc; now has support for more than 100+ video sharing sites.

FLVto lets you download YouTube videos by URL and convert them into other formats such as mp3, avi and mp4. It can download multiple files simultaneously and has a built-in audio player and ID3 tag editor for music.

Download any song from YouTube, Vimeo and SoundCloud for free and without limits.

4K YouTube to MP3 was specifically created to extract audio from YouTube, Vimeo, Facebook and other online video hosting services. No annoying and complicated settings to deal with, just a clean, simple and functional interface. Downloading is simple and straightforward: just copy the video link from your browser and click 'Paste Url'. Done!