Now that we have learned the best video file format for Facebook. The key, of course, is how to change the video formats. First of all, you should download and install a professional video converter to help you do this. WonderFox HD Video Converter Factory Pro is such a nice Facebook video format converter. With the help of this converter, you can also download videos from YouTube, Facebook, Twitter, and this converter can help you add subtitles to videos downloaded from websites. Most importantly, you can convert unsupported videos to Facebook supported video file formats. Let’s have a look at how to convert videos to MP4 for Facebook using the dedicate converter. DownloadDownload it here and follow the steps below.