Use the YouTube app’s offline download feature if you have YouTube Premium and the video allows downloads
Open the video in the YouTube app
Tap the Download button below the video
Choose the video quality if prompted
Wait for the download to finish
Open Library or Downloads in the YouTube app to watch it offline
If the Download button is not available, the video cannot be downloaded through YouTube
Avoid using unauthorized third-party download tools or websites
Check the video owner’s permissions and YouTube’s terms before downloading