- If you’re not already using it, download and install the Google Chrome web browser.
- Visit the Chrome Web Store.
- Search for: YouTube Downloader: MP3 / HD Video.
- Click "Add to Chrome."
- Go to YouTube and watch any video. You’ll notice a download button has been added below the video. Clicking this will allow you to download the the video with various levels of quality and in different formats. The number of options depends on the video; if it only streams in 240p quality, you won’t be able to download it in 360p quality or higher.
N.B. This extension previously allowed users to download the video’s sound as an mp3 file, though Google has now put a stop to this. However, the creator of the extension set up a petition here– which has garnered over 900,000 signatures at the time of writing– and is now meeting Google to discuss the matter.