From Optflux
If you’d rather do without the headache of downloading a particular facebook video downloader to download your selected YouTube video, you can work with an online tool. Although there are several web-based download platforms for YouTube, GetanyVideo is our current favorite. It’s neat and fast and won’t have you clicking through pages which spawn popups or other intrusive ads.
Step one: Discover the YouTube video you would like to download and replica its URL from your address bar on top of your browser window.
Step 2: Go to the GetanyVideo website.
Step 3: Paste it to the bar that reads “Enter the video's link...”
Step 4: Select your chosen video format and click the respective blue “Download” button for the right-hand side.