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Previewing Files Instantly with Quick Look on Mac

Quick Look lets you check a file's contents with a single tap of the spacebar, without opening the app that normally handles it.

  1. Select the file you want to preview

    In Finder, click once on the file to select it.

  2. Press the spacebar

    With the file selected, press the spacebar on your keyboard.

  3. View the content instantly

    A preview window opens immediately, showing the contents of images, PDFs, and many document types without launching a separate app.

  4. Why it is worth using

    Instead of opening and closing files one by one, a single tap of the spacebar lets you check contents instantly and keep browsing until you find the one you need.

Quick Look works consistently across almost every file type

From photos and PDFs to Office documents, videos, and even some code files, Quick Look gives a fast preview without waiting for a full app to launch β€” which makes it especially useful when you are scanning through a folder of many similar-looking files to find one specific item.

Quick Look supports light editing, not just viewing

For certain image files, the Quick Look window includes a small markup toolbar that lets you rotate, crop, or annotate the image directly, without ever opening a dedicated photo editor β€” useful for a quick fix before sending a file along.

Frequently Asked Questions

Can I actually edit a file in Quick Look, not just view it?

For some image files, yes β€” the Quick Look window offers simple editing like rotating or cropping directly from the markup toolbar that appears.

Can I view the preview in full screen?

Yes, clicking the preview window again expands it to full screen for a larger view.