Use the GramLater video extension to quickly download videoss directly from YouTube with ease, this extension will add a "Download Video" button on your youtube playing page.
Step 1: Install the Tampermonkey extension for your browser. TamperMonkey is needed for our extension to work properly. To install, click on the link below that corresponds to your browser:
Step 2: Once TamperMonkey is installed successfully, click here to the installing page. To add the "GramLater extension" to your browser, on the page click "Install" as showed in the following image.
Step 3: Now whenever you are watching a video on YouTube, a "Download Video" button will appear as shown in the screenshot. Click on it to download the video.