How To Download a YouTube video Without Any Software

1. Go to deturl page. This page let you save a YouTube video as an MP3 file, iPod file, FLV file, MP4 file,
    AVI file, and more! The page also support for  DailyMotion,  Facebook,  Break,  MetaCafe,
    FunnyOrDie,  Vimeo,  and some other sites.

2. Copy the url link of your video and paste it in the column shown below. Then, click download video.

3. At the new page, you can download the video as either a video format or an audio format.

That's it! No software is needed.