The most common cases that we have as to why you have some duplicate files on your Mac is because of some mistaken downloads because you might have clicked it twice. We are going to show you the best duplicate file finder for Mac. That is why we are going to help you with getting rid of these duplicate files that you have on your Mac. Aside from this, it can also cause our Mac to run slow in terms of performance. Over the longest time that we are using our Mac, we usually get a huge number of duplicate files that are actually eating up a lot of our storage space on our Mac.