1. Find the YouTube video you want to download.
2. Copy the video's URL from the address bar.
3. Open a YouTube downloader website. There are many options, such as Y2Mate, Savefrom, and ClipConverter.
4. Paste the video's URL into the input field on the downloader website.
5. Select the desired video format (e.g., MP3, MP4).
6. Click the "Download" button.
7. The downloader will download the video file to your computer.
Using a browser extension:
1. Install a browser extension that allows you to download YouTube videos. There are many options, such as Video DownloadHelper, YouTube Video Downloader, and SaveFrom.net Helper.
2. Open the YouTube video you want to download.
3. Click the "Download" button that appears on the video player.
4. Select the desired video format (e.g., MP3, MP4).
5. Click the "Download" button.
6. The extension will download the video file to your computer.