HandBrake is a free, open-source transcoder we can use to convert MKV to MP4, and indeed works across most video formats. It works on Windows and Mac alike.

I am looking for (preferably) free software to convert old .swf files to .mp4 - or any other current format. • These .swf files were made between 2004 - 2014 • Most, if not all, were made ...

Free and Open-Source: Like untrunc, VLC is free and open-source, making it an accessible option for all users. Basic Repair Capabilities: VLC’s repair feature is fairly limited but can handle MP4 ...