It may take some time depending on the number of files you have and the total size. You can use the "Email me when done" option to get notified once the archival completes. You can then download the created archive locally. Make sure to download it to your Google Drive shared folder or copy it there after download so it gets synced and backed up in the cloud.
YouTube By Click is much more than the easiest YouTube Channels Downloader! You Can download YouTube playlists. Download from almost any video site including Vimeo, Dailymotion, Facebook and many more! It's very intuitive and easy to use! Supports downloading of private YouTube and Facebook Videos. YouTube By Click has no limitation, It supports all qualities, including HD and all formats. With YouTube By Click you can download video of any length, even very long videos. YouTube By Click is 100% free!