The download page in Chrome on the desktop.Screenshot: YouTube
If you’re signed into YouTube with a premium account, you’ll notice a Download button underneath videos while you’re watching them: Click it and the download starts. If you’re browsing through video thumbnails in a grid (on the YouTube homepage for example), then you’re able to click the three dots next to any video to find the download option.
A small download status box appears in the lower-left corner, and you need to keep the current browser tab open until the download is completed. Downloads don’t sync between devices — they’re local to the device you’re on — and they won’t be deleted automatically unless the device goes for 30 days without connecting to the internet.
To find your downloads on YouTube on the web, click the Downloads button in the navigation pane on the left. Anything you see on this page can be watched without an internet connection if necessary. Click Download settings (top-right) to change the default video quality of your downloads, up to a maximum of 1080p HD.
On the same screen, you’ll see a Delete all downloads button, which erases all of the clips you’ve saved to the current device. To remove an individual download, click the three dots next to a clip on the downloads page and pick Remove from downloadsor go to the video page and click Downloaded then Delete on the subsequent dialog box.
Note that the caching technology required means that this only works in Google Chrome and browsers built on the same Chromium base, such as Microsoft Edge. If you’re using Mozilla Firefox or Apple Safari, you’re going to have to switch to a different browser in order to download YouTube videos.
How to download YouTube videos on iOS and Android