Use Quick Look to Preview Files and Folders in the Finder, Spotlight, and Open Dialogs

ByEmily Dolloff

Finder icons sometimes hint at their file’s contents, but if you find yourself opening file after file to look at the contents quickly, the Mac has a little-known feature just for you: Quick Look. To give it a spin, select a file in the Finder and press the Space bar or Command-Y. If Quick Look supports that type of file, it instantly displays a standalone window showing the contents of the file without opening it in its native app. Press the Space bar again to close the window.

If the document you’re previewing has multiple pages, you’ll see thumbnails along the right side that you can scroll through using your mouse or trackpad, or by pressing the Page Up/Page Down keys. But you aren’t limited to just viewing a file: click the Open With button to open the file in its default app, or click the Share button in the upper right to send it to someone else via email, Messages, or another sharing service. PDFs and images will also show the Markup button that lets you annotate the file directly, and images have a Rotate button.

If you need to scan through a set of files in a folder, you can press the arrow keys while the Quick Look window remains open—how you move among the files depends on the Finder window’s view. In List view, for instance, using the Up and Down arrow keys can be a great way to browse through a collection of pictures. You can even interact with the Finder while using Quick Look, which means you can delete an unwanted photo by pressing Command-Delete while previewing it.

Quick Look works well for evaluating or comparing multiple files. Select a bunch of files and press the Space bar to open them all in Quick Look. The Left and Right arrow keys let you cycle through your selection; there are also Back and Forward arrow buttons at the top left of the Quick Look window. To the right, you’ll see a Thumbnail button that displays the selected files in a grid—click any thumbnail to focus on just that item.

To remove the distraction of your desktop, click the Zoom button in a Quick Look window. If you have multiple files selected, you can even start a simple slideshow from the zoomed Quick Look window—it’s a quick way to show off a folder of images. Another way to get to a zoomed Quick Look window is to select the files in the Finder and press Option-Space.

What file types does Quick Look work with? Not everything, but out of the box, Quick Look supports text files, RTF files, HTML files, images, audio, video, PDFs, iWork documents (Keynote, Numbers, and Pages), Microsoft Office files, fonts, and more. Third-party apps can extend Quick Look to support proprietary formats, and developers have released independent Quick Look extensions. Many people appreciate these three extensions:

  • Folder Preview (free) displays the contents of folders in Quick Look.
  • BetterZip (free for viewing) lets you look inside Zip archives and other compressed files.
  • Peek ($7.99) not only supports 530 file types but also lets you copy, search, navigate, and more directly within the Quick Look window.

Although it’s best known in the Finder, Quick Look is available elsewhere on the Mac, including the examples below, so it’s always worth selecting what you want to preview and pressing the Space bar to see if it works.

  • Spotlight: Preview search results to see if they’re what you want
  • Open dialogs: Preview files before you open them
  • Time Machine: Preview versions of files before restoring them
  • File transfer apps: Preview files on remote servers before downloading
  • Messages: Preview files added to conversations before opening them
  • Mail: Preview attachments to email messages

To manage your Quick Look extensions, open System Settings > General > Login Items & Extensions, scroll to the bottom, and click the ⓘ button next to Quick Look.

Finally, note that if your Mac has a trackpad, you can invoke Quick Look by force-touching a Finder icon (press deeply until you feel a click) instead of pressing the Space bar.

Quick Look takes just moments to learn, but it can save you hours of time poring through files on your Mac!

(Featured image by iStock.com/megaflopp)

Social Media: With a press of your Mac’s Space bar, you can use Quick Look to preview the contents of nearly any selected file, saving you time looking for the right file, comparing files, evaluating photos, and more. Try it in apps other than the Finder, too!

Similar Posts

  • _Dear Friends,_

    It is raining today here in Key West but as with most tropical showers it will likely pass over soon and the sun will come back. My neighbor, Glenn Thomas, posted a picture of the first daffodil at our Prickly Mountain location so I guess it is safe for me to head back north. Grace and I will be packing up and driving up I-95 next week.

    Apple quietly made some changes to the 12-inch Macbooks and 13-inch Macbook Airs this week that I will review below and as promised we will talk some more about dictation. Apple did not hold a big event for these laptop upgrades but they are welcome changes that should be a precursor to updates to the rest of the laptops in Apple’s lineup. We will have these new Macbooks and Macbook Airs in stock this week and have some great deals on the newly discontinued models with up to $200 off.

    This week’s Kibbles & Bytes exclusive features the Hammerhead Jacket case for the iPhone 5, 5s or the new 5se. This case offers exceptional corner protection with a double injection molded design featuring strong polycarbonate and flexible TPU. Anti-slip sides keep the phone securely in your hand when in use. Of course, all the ports and buttons are easily accessible through this protective case. We have ten designs for this case: Watermelon Red, Hubcap, Pride, Snake Skin, Helmet, Hammerhead Purple, Lemon Yellow, Black, Sky Blue and Hammerhead Orange. I know you can decide which to use so for this week we are offering a 10-pack featuring one of each case. Change as your mood sees fit or give one to a friend. Normally, these cases are $14.99 each but “**exclusively for Kibbles & Bytes readers you can get all ten for only $49.95!**”:http://www.smalldog.com/wag900002206

  • Who cares about QR Codes?

    By now you’ve probably seen one of those odd-looking white squares with a bunch of smaller square dots that make up a random pattern inside–that’s a QR code. QR stands for “Quick Response,” and a QR code is a form of barcode, just like on the packaging of nearly everything you buy.

    Usually QR codes are used to store Web links–URLs–so an ad can display just the QR code instead an unwieldy and hard-to-type web address. But QR codes aren’t just for ads. They’ve appeared on business cards, in magazines and books, on coins and bills, and even on tombstones–any place it would be nice to help someone load a Web link into a smartphone but where there isn’t enough room for a URL or in situations where viewers won’t remember the URL later. And the links? They can display anything that can appear on the Web: text, photos, videos, games, and more.

    Only one built-in iPhone app can scan QR codes–the Wallet app in iOS 9–but it can scan only QR codes that are associated with Wallet passes, things like airline boarding passes, concert tickets, and iTunes gift cards. For QR codes that encode any other sort of data, Wallet shows an error. It would be nice if Apple would add general QR scanning capabilities to Wallet or the Camera app, but until that happens, you’ll need another app.
    There are numerous QR code scanning apps in the App Store, but if you need a recommendation, give TapMedia’s QR Reader for iPhone a try. It’s free with ads (remove them with a $1.99 in-app purchase), scans both QR codes and traditional barcodes on most commercial products, and displays the associated information within the app. It can even help you create your own QR codes.

    To use a QR code scanner, launch the app, allow it to access the camera when it asks, and then point it at the QR code. Good apps will scan nearly instantly, but if not, move the camera so the QR code is centered between the guides. If even that doesn’t work, move forward or back so the camera can focus on the centered code.

    Once the code has been scanned, the app will usually bring up an in-app Web browser to display whatever was encoded. For certain kinds of data, like books or grocery items, the app may go right to Amazon or a price comparison site. Good apps will also keep a record of sites you’ve scanned, so you can go back to them later, even if you can no longer scan the QR code.

    So download a QR code scanning app and keep an eye out for QR codes. Once you start looking, you’ll find them everywhere–it’s a modern-day treasure hunt!

  • New Apple Creator Studio Bundles Pro Apps

    Apple has introduced Apple Creator Studio, a subscription bundle of Final Cut Pro, Logic Pro, Pixelmator Pro, Motion, Compressor, and MainStage, priced at…