When it comes to how to combine videos on Mac, a good many Mac users might bethink of using a built-in QuickTime Player to do it. Indeed, QuickTime is a decent choice for skilled users to merge video clips on Mac. But for non-skilled users, taking QuickTime to combine videos is not that simple. In order that everyone can join separate videos together on Mac with ease, the following shares 4 professional yet easy-to-operate video joiners for Mac.