Many tolls and apps to download YouTube videos and watch them offline 
watching, you don’t really need them to download your own YouTube videos
 from the YouTube website.beast and easy way to download YouTube video in one click is through  Video Manager in YouTube.Click on edit button next to the video and select download choose download MP4 from dropdown.By this method you won’t get the resolutions like 720p 1080p that you
 have upload to the YouTube site. Your 720p and 1080p HD video will be 
saved at 480p.
DOWNLOAD YOUR ORIGINAL RESOLUTION YOUTUBE VIDEOS:

- Go to google.com/takeout and just click on create archive button. Google will now create the zipped archive with all videos that you have uploaded to YouTube site.
 - Once the archive is done, proceed to the download tab to grab the original files. If the archive size is more than Google take out will split into 2GB individual files.
 

Download your YouTube Videos;
 That’s it you are done with your work. Now you have all the prints of
 the YouTube videos that you have previously uploaded to the YouTube 
site. This is extremely good option if you want copy the same files to 
other video hosting service.
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