1. Open YouTube and sign in.
2. Click on the three lines in the top left corner of the main screen.
3. Select "History (Downloads)."
4. If the video you want to download isn't listed here, click on "Search History" and type in the video's name.
5. Once you've found the video, click on it to download.
6. Click "Download."
7. That's all! You can now play the video whenever you want.