Best AVI to MP4 Converter Mac You Must Know An array of Mac AVI to MP4 programs are enlisted below. You can pick from a professional AVI to MP4 converter Mac, an online tool or a freeware depending on files to be converted and what features you want. To convert your files on your Mac system (macOS 10.7 to 10.15), a number of AVI to MP4 Mac tools are available. Here, the need for converting AVI to a more popular format as MP4 arises. 2.10 Convert MP4 to MP3 on Windows Media PlayerĪVI video format is in use for a long time, but still, the format faces compatibility issues with a number of players.