Resize images in bulk on Mac
Scale images so the longest edge fits a size.
Three steps. That's it.
- 1
Drop your files
Drag files onto Resize Images, choose them with Choose Files, or right-click them in Finder.
- 2
Choose the options
Set what you need in the options panel, such as longest edge. Your choices are remembered for next time.
- 3
Get the result
The result lands in a new dated folder in Downloads › OneMacTools. Your originals are never changed.
What Resize Images does
Resize a batch of images so the longest edge is 3840, 2048, 1600, 1280, 1024, 640 or 320 pixels, keeping their shape and format.
Options
Great for
- Prepare product photos for a shop
- Make thumbnails
- Resize screenshots for a blog post
Questions about Resize Images
Does Resize Images upload my files?
No. Resize Images runs entirely on your Mac, so your files never leave it and it works offline.
Will Resize Images change my original files?
No. Results are saved as new files in a dated folder in Downloads › OneMacTools, and your originals are left exactly as they were unless you turn on an option that says otherwise.
What does Resize Images need?
Just a Mac with macOS 26 or later. There's nothing else to install.
Related Images tools
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Crop ImagesCrop to a standard aspect ratio, or trim plain borders automatically.
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Screenshot BeautifierPut screenshots on a gradient with padding, rounded corners and a soft shadow.
Resize Images, plus 88 more.
One app. One price.
All 89 tools for $29, once. 14-day money-back guarantee.