YTD Downloader (YouTube Downloader) 是一款可讓您從 YouTube, Google Video, Yahoo Video 及其他許多來源下載影片並將它們轉換為其他影片格式的軟體。這款軟體非常容易使用，介面相當直覺，只要將您想要下載的影片的網址複製並貼在 [Enter the URL of the video…] 欄位中，然後按下 Download 鍵，就會出現下載視窗，開始下載影片。您可以在家裡、辦公室或學校免費使用這套軟體。
這款軟體也可將下載回來的影片轉換格式來供 iPod, iPhone, PSP, Windows Media, XVid, MP3 和手機使用。
§ 作業系統：Windows 2000/XP/Vista/7/8
§ 官方網站下載頁面
§ 檔案下載
YTD Downloader 原文簡介：
YTD Downloader (YouTube Downloader) is software that allows you to download videos from YouTube, Facebook, Google Video, Yahoo Video, and many others and convert them to other video formats for free.
The program is easy to use, just specify the URL for the video you want to download and click the Ok button!
It also allows you to convert downloaded videos for Ipod, Iphone, PSP, Cell Phone, Windows Media, XVid and MP3.
You can use the software to download the videos of your choice from home, at the office or in school.