Here are the top 3 alternative websites to FBDownloader for downloading Facebook videos:

1. SaveFrom.net

• One of the most popular and reliable video downloaders
• Supports multiple platforms (Facebook, YouTube, Twitter, Instagram)
• Simple interface - just paste the URL and download
• Offers multiple quality options (SD, HD)
• No software installation required
• Works on mobile and desktop

2. FDown.net (Fbdown.net)

• Specifically designed for Facebook video downloading
• Very similar functionality to FBDownloader
• Supports public and private video downloads (with login)
• Offers MP4 format in various qualities
• Simple, ad-supported interface
• Also supports Instagram and Twitter

3. Getfvid.net

• Clean, user-friendly interface
• Fast downloading speeds
• Supports HD video downloads
• No registration required
• Works on all devices
• Also provides thumbnail downloading option
• Minimal ads compared to others

How to use these sites:

• Copy the Facebook video URL
• Paste it into the downloader website
• Select your preferred quality (usually SD or HD)
• Click download and save the file

Note: Always respect copyright laws and only download videos for personal use or with the content creator is permission.