When using the right tools this doesn’t have to be a complicated task!īelow, we have put together a list of 5 popular free duplicate file finders for Mac which will make finding and deleting duplicates on your Mac much easier: 1. One of the easiest ways to free up space on your Mac is to delete duplicate files. The solution sounds easy, right? Delete files to free up space! However, it can be tedious to find files to delete on your Mac, especially if you have a large hard disk. When your Mac is running low on disk space it may begin to act unusual, slow down or lock up.