Best easiest solution: Movavi Video Converter.Because neither macOS nor Windows comes with a built-in utility for converting videos, you need something third-party. The basic case of iOS devices is not different either.
Similarly, if you want something to work natively on macOS, you have to convert into specific formats. And, this is why we need to talk about video converters. I mean, you cannot simply copy an MKV file to an iPhone 12 and expect it to work. Things are worse when you have an iPhone and Android device, you know. If you own multiple devices, you know the hardship of finding compatible media formats. Video is definitively the most popular media format for entertainment. Editor’s note: After testing the latest version 12 of Wondershare Uniconverter against the competition, we still stand by our recommendations.