There are many hot videos on YouTube but sometime you can't watch them due to poor network connection, outdated plug-in version and so forth. To get rid of those problems, I highly recommend you to download those hot YouTube videos and play them offline anytime and anywhere. Based on this condtion, I want to share you some really helpful tools.
Many of you use YouTubeInMP4, also called ConvertInMP4 now,to download YouTube videos for offline playback. It's a good tool indeed. However things can’t always go smoothly. Instead of struggling with those YouTubeInMP4 YouTube downloading problems hard, I think it's a better way to find an alternative downloader. Here is the review on YouTubeInmp4: http://www.videoconv...downloader.html
Also you can find many sites like YouTubeInMP
keepvid.com/
catchvideo.net
www.clipconverter.cc/
If you don't want to intall any plug-in on your PC, you can try the sites above. But if you expect to download HD videos and enjoy fast download speed, you can miss this one: HD Video Converter
It does a good job for you to download 720P/4K/8k/360VR YouTube videos in this review.