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How to view and sort images on a Mac
A folder of a few hundred photos and the slow ritual of double-click, look, close, repeat. Your Mac already has faster ways in. A couple of keys in Finder turn that ritual into a quick flick through the whole folder.
The built-in tools first, then image viewers for Mac. Quick Look, Gallery view, Preview and tags come with macOS. A dedicated viewer helps when you need RAW files, floating reference windows or side-by-side comparison.
Let Finder do the viewing
Select an image and press Space to open Quick Look. Use the arrow keys to move to the next file without closing it. Switch the Finder window to Gallery view for a large preview with a strip of thumbnails.
Tag as you go
Give keepers one colour tag and rejects another, then sort or search by tag. It is faster than moving files folder by folder. For phone photos, see how to clean up your photo library.
Edit lightly in Preview
Preview crops, resizes, rotates and adjusts colour without extra apps. For heavier edits, see photo editing apps.
When to get a viewer app
If you work with RAW files, need an image floating above other windows as a reference, or compare two images side by side, a dedicated viewer helps. Compare them in image viewers for Mac. For screenshots, see how to organize your screenshots.
| Step | What you do | Why |
|---|---|---|
| 1. Quick Look | select a file, press Space | instant preview |
| 2. Arrow keys | move through the folder | flick through fast |
| 3. Gallery view | in the Finder window | big previews and info |
| 4. Colour tags | mark keepers and rejects | sort as you go |
| 5. A viewer app | for RAW or reference | more control |
Frequently asked questions
How do I preview images quickly on a Mac?
Select an image in Finder and press Space to open Quick Look, then use the arrow keys.
Can a Mac open RAW photos?
macOS supports many RAW formats. A dedicated viewer can help with others or with faster browsing.
How do I sort photos without moving them?
Use Finder colour tags, then sort or search by tag.