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How to Merge Two Similar Folders in the Mac’s Finder

You’ve ended up with two folders whose contents—hundreds of files or more—are similar but not identical. Perhaps you’re recovering from a sync failure, or maybe you pulled an old version of the folder from a backup and aren’t sure what’s different. Regardless, here’s how you can merge them in the Finder. Make sure the folders are named identically and are in two different locations on your Mac. Press and hold the Option key, then drag the folder that contains more files to the location that contains the folder with fewer files. In the dialog that appears, click Merge to copy only newer files from the source and those not already in the destination. (It’s not a two-way sync; for that, you need an app like ChronoSync.) The Merge button appears only if the source folder contains files not in the destination; if the folders contain just different versions of identically named files, you’ll get only Stop and Replace buttons. For safety, always work on copies of your folders and check your work afterward to ensure the right things happened.

(Featured image by iStock.com/RerF)


Social Media: If you want to merge two folders that contain some of the same data, a little-known Finder feature can do it for you.

Quickly Put Lots of Files in a Folder with One Command

Imagine that you’re working with a bunch of files, and you want to put a set of them in a new folder. You could stop what you’re doing, make a new folder, select all the files, and drag them into the folder, like an animal. Or you could take advantage of a slick Finder command that Apple added in macOS 11 Big Sur. Simply select the files you want to put in a folder, Control-click one of them, and choose New Folder with Selection (X Items) from the top of the contextual menu. A folder called “New Folder With Items” appears, with your selected files inside. This feature may not be life-changing, but some people use it often.

(Featured image by iStock.com/ArLawKa AungTun)