Just before this moment you only know how to see videos online from YouTube but from now you know how to save videos for offline use. You need not to download any software. Have a look on this trick……
Step 1: Goto YouTube website. (www.youtube.com )
Step 2: open the video you want to download.
Step 3: Care this step……. Be careful that you are on the page from where
you can start your video by one click.
Step 4: now add ss before the word youtube in the URL and press enter.
Step 5: Now after pressing enter you will redirected to a new webpage.
Step 6: now all done you can choose your type (e.g. 3gp, mp4, avi, etc.)