KeepHD KeepHD is a free web tool which allows you to download YouTube HD videos.是一个免费的网络工具 ，它允许您下载YouTube高清视频。 With this tool you can not only download your favorites movies from YouTube in HD, but also the mobile 3GP version for your mobile devices and also the standard MP4 and FLV format.有了这个你不仅可以下载您的收藏夹从YouTube的高清电影的工具，而且移动3GP为您的移动设备的版本，也是标准的MP4和FLV格式。 All you need to provide is the URL of the HD video of YouTube.所有您需要提供的是YouTube的高清视频的网址。
The tool provides three ways to download YouTube HD videos.该工具提供了三种方法来下载YouTube高清视频。
1. 1。 Enter the URL of the YouTube HD video directly into the tool and click on the download button.输入的YouTube高清视频的URL直接到工具和下载按钮。 The tool will download the video for you.该工具会为您下载视频。 Once you enter the URL, you are provided with the option to download it in either low quality or a mobile 3GP version or the normal MP4 version.一旦你输入网址，为您提供了可以选择下载或低品质或移动3GP版本或正常的MP4版本。
2. 2。 In the second method, You just need to replace YouTube in the URL with KeepHD and it will show up the download links.在第二种方法中，你只需要更换URL以KeepHD YouTube和它会显示下载链接。
3. 3。 You can also add KeepHD as a bookmarklet and then click on it to download the videos.您还可以添加KeepHD为书签，然后点击它下载的影片。
