WonTube Video Converter is a free chrome extension that will allow you to download youtube videos into mp3, mp4 or flv format. It is very easy to use anybody. You can simply add WonTube Video Converter on your browser.
After that installation of WonTube Video Converteryou can download videos when you play youtube videos download button will appear top of the you video simply click on that button the link redirect into another website here you can select video format and download the video into your computer.
Add to Chrome click here