YouTube the number one video hosting site more than million videos in its store, albums, product launch, concert, tutorials, movies, songs and many more .Here are list of services or software which you use to download this videos to your pc and use them. I have not tested all of them, but I put this before you as a reference for all who wants to download the videos.
Basically the downloader’s come in 2 types one online (web based) with no download or installation required, a website asks you the link of the video and it downloads and convert it and then gives you a link of video that you can download.
The other way is install the software and put the link and download the video directly to your pc.
Advantage the software programs has got over online one is that it gives you option for keeping downloads in queue ,pause downloads, download all parts of video, join video and convert video depending upon the software type and functionality.
List of Online Download services:
1. Keepvid: A straightforward service. The user needs to paste the url of the Youtube video in the form provided on the website. Keepvid will then offer low quality and high quality downloads of the video. Works with other video portals like MySpace video or Dailymotion as well. Offers a bookmarklet which works more comfortably than copying pasting Youtube urls.
2. Zamzar: A file conversion service that can not only download Youtube videos but also convert the videos into different formats. Great for users who need the video in a different format and do not want to convert them on their computer system.
3. KCoolOnline: Currently supports 231 video portals including Youtube. It has a basic interface. All that needs to be done is to paste a video url in the form to download the Youtube video. Users who like to download videos from many different video portals might like this as it supports a lot of them.
4. Video Downloader: Another basic web interface that allows users to download and convert videos from sites like Youtube, Dailymotion or MySpace. Nothing much to say about this service except that it offers downloads in the original flv format but also in mp4 out of the box.
5. SaveVid: Offers Youtube videos in original flv or mp4 format. Displays a live list of videos that get downloaded by users on the website which can be a great source of videos as download links are displayed directly. Offers top 10 lists, archives and categories as well.
6. Vidgrab: Vidgrab offers a web form that can be used to paste Youtube videos into it. These videos can then be downloaded in their original format. One interesting aspect of Vidgrab is the list of popular videos that are displayed on the website. These can also be downloaded directly to the computer system.
7. Vixy: Vixy is a video converter that supports Youtube videos. It does not offer the means to download Youtube videos in their original format. Videos can be converted into various formats including avi, 3gp, mov or mp4.
8. KeepTube: Online service to download Youtube videos with preview and options to download the video in various formats including normal and high quality flv, 3gp and mp4. Offers additional ways of downloading the videos including a bookmarklet and a very ingenious way by adding keep- after the www. of the youtube url.
9. KissYoutube: Offers a similar service as Keeptube by allowing users to add the word kiss after the www. of the youtube url to download videos directly without having to visit the KissYoutube website manually. Comes with the usual form to download videos from Youtube as well.
List of Softwares Download services:
YouTube Downloader is software that allows you to download videos from YouTube, Google Video, Yahoo Video, and many others and convert them to other video formats
Orbit Downloader (Windows) : Orbit is a very popular download manager that supports a variety of popular media sites out of the box including Youtube, MySpace or Pandora. It integrates with web browsers and comes with the Grab++ module that can be used to catch and download media files.
Youtube-DL (Linux, Windows): A command line program to download videos from Youtube
Abby and CCLive (Linux): Abby is a frontend for CCLive that can be used to download videos from various popular video hosting websites including Youtube.
GetTube (Mac): An application for Apple Mac computers that can be used to download Youtube videos.
There are many more services which offer the same ,will soon update with more as such.