From Optflux
If you’d rather do without the hassle of downloading a specific download youtube videos to download your preferred YouTube video, you can readily online tool. Nevertheless, there are lots of web-based download platforms for YouTube, GetanyVideo is our current favorite. It’s clean and fast and won’t have you ever clicking through pages which spawn popups and other intrusive ads.
1: Discover the YouTube video you want to download and copy its URL in the address bar near the top of your browser window.
Step 2: Navigate to the GetanyVideo webpage.
Step 3: Paste it to the bar that reads “Enter the video's link...”
Step 4: Select your selected video format and click the respective blue “Download” button on the right-hand side.