Duplicating a file or folder makes an exact copy of the file or folder. You can use the duplicate function from anywhere in the file system of Mac OS, here’s how it works: Go to the “Finder” on the Mac and locate the file or folder you want to duplicate and make a copy of. Select the file or folder you wish to duplicate. Aug 17, 2018  Method 2: Easily Search and Remove Duplicates with A Duplicate Finder. To check and clean duplicate file on Mac in one click: Step 1. Install FonePaw MacMaster on your Mac. It works with macOs 10.13/10.12 Sierra, Mac OS X 10.11 El Capitan, Mac OS X. Gemini is one easy to use duplicate file finders for your Mac. It uses fast scanning algorithm to get useless duplicates on your Mac computer. It lets you preview files before you remove them just like MacClean and support 10 languages. But the new updated Gemini 2 requires Mac OS X 10.10+ and cost you 19.95 US dollars. Photos Duplicate Cleaner a free-to-use duplicate photo finder Mac users can install and use. It helps you effectively manage and organize the photo collection on your Mac by finding duplicate photos and removing them safely in a few clicks. This duplicate photo finder for macOS scans for duplicate photos from a selected drive or folder on your Mac. Jul 22, 2019  dupeGuru is a duplicate file finder for Mac available for free online. This app has a simple design and is made to be easy to use. DupeGuru requires OS X 10.7 or later and is available in more than ten languages including French, English, German, among others. Scanning can be done according to filenames or contents. Best duplicate file finder for Mac. When you drag an application to the Trash, its preferences, cache and log files still remain on your drive and waste valuable disk space. With EaseUS CleanGenius, you can completely remove applications and their associated files. Browser Plug-ins Cleanup: Support to clean up and remove browsers such as Safari.

• Manual For The Duplicate Finder For Mac Os X 10
• Best Duplicate Finder For Mac

Duplicate files are a waste of disk space, consuming that precious SSD space on a modern Mac and cluttering your Time Machine backups. Remove them to free up space on your Mac.

There are many polished Mac apps for this — but they’re mostly paid software. Those shiny apps in the Mac app store will probably work well, but we have some good options if you don’t want to whip out your credit card.

Gemini and Other Paid Apps

If you do want to spend money on a duplicate-file-finder app, Gemini looks like one of the best options with the slickest interfaces. The trial version worked well for us, and the interface certainly stands out from barebones, free applications like dupeGuru. Gemini can also scan your iTunes and iPhoto library for duplicates. If you’re willing to pay $10 for a better interface, Gemini seems like a good bet.

There are other, similarly polished duplicate-file-finders in the Mac App Store, too — but Apple flags this one as an Editors’ Choice, and we can see why.

As a bonus, the demo version of Gemini allows you to search for and find duplicates, but not remove them. So, if you really wanted, you could use the demo to find duplicates on your Mac, locate them in Finder, and then remove them by hand. Other paid duplicate-file-finder apps have demos that function in a similar way, so this may be convenient if you just want to run an occasional scan and you don’t mind deleting a handful of duplicates by hand.

There are many good-quality, paid duplicate-file-finding apps for Mac. You can find them with a quick trip to the Mac App Store.

dupeGuru, dupeGuru Music Edition, and dupeGuru Pictures Edition

RELATED:10 Ways To Free Up Disk Space on Your Mac Hard Drive

We also recommended dupeGuru for finding duplicate files on Windows. This application is both open-source and cross-platform. It’s simple to use — open the application, add one or more folders to scan, and click Scan. You’ll see a list of duplicate files, and you can select them and easily move them to the Trash or another folder. You can also preview them, verifying that they actually are duplicates before tossing them away.

dupeGuru is available in three different flavors — a standard edition, an edition designed for finding duplicate music files, and an edition designed for finding duplicate pictures. These tools won’t just find exact duplicates, but should find the same songs encoded at different bitrates and the same picture resized, rotated, or edited.

Manual For The Duplicate Finder For Mac Os X 10

This application is utilitarian, but it does its job well. You don’t get the shiny interface that you do with the paid Mac apps, but it’s a good free tool for finding and clearing duplicate files. If you want a free application for finding and removing duplicate files on a Mac, this is the one to use.

iTunes

iTunes has a built-in feature that can find duplicate music and video files in your iTunes library. It won’t help with other types of files or media files not in iTunes, but it can be a quick way to free up some space if you have a big media library with duplicate files.

To use this feature, open iTunes, click the View menu, and select Show Duplicate Items. You can also hold the Option key on your keyboard and then click the Show Exact Duplicate Items link. This will only show duplicates with the same exact name, artist, and album.

After you click this, iTunes will show you a sorted list of duplicates next to each other. You can go through the list and delete any duplicates from your computer if they actually are duplicates you want to delete. When you’re done, click View > Show All Items to get back to the default list of media.

Best Duplicate Finder For Mac

That’s it? Yup, that’s it. We didn’t want to recommend potentially confusing Terminal commands that output a list of duplicates to a text file, awkward methods that involve scrolling through a list of all the files on your Mac in the Finder, or applications that require disabling the Mac’s Gatekeeper feature to run untrusted binaries. The tools above will do the job, whether you want a barebones-and-free utility or a polished-but-paid application.

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At the top of every Finder window is a small set of function icons, all in a gradient-gray row (Figure 4-7). The first time you run OS X, you’ll find only these icons on the toolbar:

• Back (), Forward (). The Finder works something like a web browser. Only a single window remains open as you navigate the various folders on your hard drive.

  The Back button () returns you to whichever folder you were just looking at. (Instead of clicking , you can also press ⌘-[, or choose Go→Back—particularly handy if the toolbar is hidden, as described below.)

  The Forward button () springs to life only after you’ve used the Back button. Clicking it (or pressing ⌘-]) returns you to the window you just backed out of.

• View controls. The four tiny buttons next to the button switch the current window into icon, list, column, or Cover Flow view, respectively. And, remember, if the toolbar is hidden, you can get by with the equivalent commands in the View menu at the top of the screen—or by pressing ⌘-1 for icon view, ⌘-2 for list view, ⌘-3 for column view, or ⌘-4 for Cover Flow view.

  Figure 4-7. If you right-click (or two-finger click) a blank spot on the toolbar, you get a pop-up menu that offers you a choice of three looks for the buttons here: Icon Only, Text Only, or Icon and Text. (Well, four looks, if you count Hide Toolbar.) In Text Only mode (bottom), the four View buttons are replaced by a little pop-up menu called View. Furthermore, the search box turns into a one-word button called Search. Clicking it brings up the Search window.

• Arrange (). This pop-up menu lets you group the files in a window by date, name, or other criteria; see Arrange By and Sort By.

• Action (). You can read about this context-sensitive pop-up menu on Shortcut Menus, Action Menus.

• Share (). You can read about this context-sensitive pop-up menu on Notes on Disk Swapping.

• Tags (). Here’s the Tags menu described on Broken Aliases.

• Search box. This little round-ended text box is yet another entry point for the Spotlight feature described in Chapter 3. It’s a handy way to search your Mac for some file, folder, disk, or program.

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With the toolbar, the Dock, the Sidebar, and the large icons of OS X, it almost seems like there’s an Apple conspiracy to sell big screens.

Fortunately, the toolbar doesn’t have to contribute to that impression. You can hide it by choosing View→Hide Toolbar or by pressing Option-⌘-T. (The same keystroke, or choosing View→Show Toolbar, brings it back.) You can also just make it smaller by hiding the labels (or the icons), as shown in Figure 4-7.

OS X offers a collection of beautifully designed icons for alternate (or additional) toolbar buttons. But you can also add anything to the toolbar, turning it into a supplementary Dock or Sidebar. This is great news for people who’ve run out of space for stashing favorite icons in the Dock or the Sidebar. (Of course, if that’s your problem, you need a bigger monitor.)

The first step in tweaking the toolbar is choosing View→Customize Toolbar. The window shown in Figure 4-8 appears.

This is your chance to rearrange the existing toolbar icons or delete the ones you don’t use. You can also add any of Apple’s buttons to the toolbar by dragging them from the “gallery” onto the toolbar itself. The existing icons scoot out of your cursor’s way, if necessary.

Figure 4-8. While this window is open, you can add icons to the toolbar by dragging them into place from the gallery before you. You can also remove icons from the toolbar by dragging them up or down off the toolbar. Rearrange the icons by dragging them horizontally.

Most of the options in the gallery duplicate the functions of menu commands. Here are a few that don’t appear on the standard toolbar:

• Path. Most of the gallery elements are buttons, but this one creates a pop-up menu on the toolbar. When clicked, it reveals (and lets you navigate) the hierarchy—the path—of folders you open to reach whichever window is open. (Equivalent: ⌘-clicking a window’s title.)

• Eject (). This button ejects whichever disk or disk image is currently highlighted. (Equivalent: the File→Eject command, or holding down the key on your keyboard.)

• Burn. This button burns a blank CD or DVD with the folders and files you’ve dragged onto it. (Equivalent: the File→Burn [Thing Name] to Disc command.)

• Space. By dragging this mysterious-looking item into the toolbar, you add a gap between it and whatever icon is to its left. The gap is about as wide as one icon. (The fine, dark, rectangular outline that appears when you drag it doesn’t actually show up once you click Done.)

• Flexible Space. This icon, too, creates a gap between the toolbar buttons. But this one expands as you make the window wider. Now you know how Apple got the search box to appear off to the right of the standard toolbar, a long way from its clustered comrades to the left.

• New Folder. Clicking this button creates a new folder in whichever window you’re viewing. (Equivalent: the File→New Folder command, or the Shift-⌘-N keystroke.)

• Delete. This option puts the highlighted file or folder icons into the Trash. (Equivalent: the File→Move to Trash command, or the ⌘-Delete keystroke.)

  Tip

  Weirdly enough, if you highlight an icon in the Trash and then click this Delete button, you trigger the Put Back function—flinging the icon back into the folder it came from. That is, clicking Delete in this case actually undeletes.

• Connect. If you’re on a home or office network, this opens the Connect to Server dialog box so you can tap into another computer. (Equivalent: the Go→Connect to Server command, or ⌘-K.)

• Get Info. This button opens the Get Info window for whatever’s selected.

• Drag the default set. If you’ve made a mess of your toolbar, you can always reinstate its original Apple arrangement by dragging this rectangular strip directly upward onto your toolbar.

If the window ever gets too narrow to show all the icons you’ve added to the toolbar, the right end of the toolbar sprouts a symbol. Click it for a pop-up menu that names whichever icons don’t fit at the moment. (You’ll find this toolbar behavior in many OS X programs, not just the Finder: Safari, Mail, and so on.)

Millions of Mac fans never realize that they can drag any icons at all onto the toolbar—files, folders, disks, programs, or whatever—to turn them into one-click buttons.

In short, you can think of the Finder toolbar as yet another Dock or Sidebar (Figure 4-9).

Figure 4-9. You don’t need to choose View→Customize Toolbar to add your own icons to the toolbar. Just hold down the ⌘ and Option keys, and then drag an icon from the desktop or any folder window directly onto the toolbar at any time. To remove the icon later, press ⌘ as you drag it away from the toolbar.

You can drag toolbar icons around, rearranging them horizontally, by pressing ⌘ as you drag. Taking an icon off the toolbar is equally easy. While pressing the ⌘ key, just drag the icon clear away from the toolbar. It vanishes in a puff of cartoon smoke. (If the Customize Toolbar sheet is open, you can perform either step without the ⌘ key. You can also get rid of a toolbar icon by right-clicking or two-finger clicking it and choosing Remove Item from the shortcut menu.)