Sync Files Between Macs with iCloud

This is a discussion on Sync Files Between Macs with iCloud within the iCloud forums, part of the Apple Services category; You can sync files across iCloud-equipped Macs by using an unofficial feature tied to a little known folder hidden in OS X. We’ll walk you ...

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    Sync Files Between Macs with iCloud

    You can sync files across iCloud-equipped Macs by using an unofficial feature tied to a little known folder hidden in OS X. We’ll walk you through exactly how to get this set up, allowing you to sync files and folders across Macs seamlessly, but first make sure you meet some basic system requirements.


    Macs must have OS X 10.7.2 (or greater) installed
    iCloud enabled and set up on each Mac, using the same iCloud account
    After you’ve sure you have the latest version of OS X installed and iCloud configured to use the same account on all Macs you want to sync between, you can proceed. This is a great little trick that was first noticed by a reader submitted tip to a sister publication of MacWorld, but oddly they didn’t bother to test the tip to make sure it works. Nonetheless we and others did test it and can confirm it syncs files and folders perfectly.

    Share & Sync Files Using iCloud Between Macs

    Complete the following steps on all Macs you intend to sync files with:

    Open “System Preferences” on all Macs from the  Apple menu
    Click on “iCloud” and be sure the checkbox next to “Documents & Data” is checked

    Go to the Mac OS X Desktop and enter into ~/Library/ either by holding Option and clicking on the “Go” menu or using another method to access user library
    Locate the folder named “Mobile Documents” and right-click on it, choosing “Make Alias”

    Copy the alias of that folder to the OS X Desktop

    Test iCloud syncing by dragging a file into that directory

    Wait a few seconds, and check the same directory on the other Mac, you should see the files.

    Officially Unsupported

    Keep in mind this is currently an unsupported feature of iCloud and Mac OS X, so you shouldn’t rely on this 100% to sync files reliably. You’ll want to keep a copy of files elsewhere and then copy them into that folder so you can prevent any potential data loss. It does work, but until it’s officially supported you should be wary of depending on the feature.

    Syncing with GoodReader & iOS

    Testing was also done by MacStories, who discovered a variation of the trick can be used to sync things between Macs and an iPhone or iPad with the iOS app GoodReader. If that interests you, check it out.

    DropBox Competitor?

    This whole thing was initially noticed after Yahoo/Business Insider found it and went on to assume that Apple might be prepping a competitor to DropBox. This is a possibility, and Apple did attempt unsuccessfully to buy DropBox years ago, but more likely this is just a feature of iCloud that hasn’t found it’s way into an official feature list yet, for whatever reason.


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