Moving, copying, duplicating and merging folders is something that shouldn’t be taken lightly. Although these are simple, everyday functions that are easily doable, they can have dire consequences if we move a folder some place we might never find it, overwrite a folder, make and delete numerous copies of a folder and end up losing the original. For those of you who have yet to experience any of these mishaps, it’s likely you just don’t have a really important folder; accidents like this happen mostly to important stuff, and not your collection of cloud shapes. MacMerger is a free Mac app that, on one hand, makes it easy to merge two different folders, and on the other, might just result in files being overwritten if not handled properly. In short, this is a powerful app, and with great power, comes great responsibility.
The app is simple enough, but the intro is ad-supported. Hit Start on the welcome screen, and you will see two large folder icons. Drag & drop the two folders you want to merge (one on each icon) and click the Merge button.
The app will not remove any of the folders, nor does it create a new one. It simple ensures that the same files are in both folders. The location of the folders does not change in any way. What you need to be careful about, is files with the same name, which are overwritten in the merging process. This means if you’re merging a very important folder on your desktop that contains the solution to the world food problem, with another that resides elsewhere on your hard drive, and both have a file named “This-sis-super-important.pdf“, you will lose one of them. In the event that both files were exact copies, it isn’t a big deal, but if one was an updated version of the other, you have a situation on your hands. The same holds true when merging copied images from, say, a camera, which uses the same nomenclature for all snaps by default. You may end up losing more than what you bargained for, so be advised.
The app is useful if you want to merge two folders but have numerous files in each, some being copies of each other, and you don’t have the time or patience to select and copy them one by one. As stated before, merging files is serious business. Wear protective gear if you have to, and practice caution.