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iResize can resize, compress, and save as JPEG at 72dpi the image files (8-bit) GIF, JPEG, PICT, PNG, TIFF, and PSD.

Here are some key features of iResize:

  • New and streamlined interface
  • Easy and fast
  • Check before resizing with the new JPEG compression/quality preview
  • Rename and sequential numbering of the resized images, and/or
  • Add some text (example: -small) at the end of the file name
  • Handles accented characters (ü,ç etc.) in the file names
  • Rotation of single or multiple images
  • EXIF data reading
  • Brightness control for the more...

What's New

New in version 3.2.6:
  • Added Spanish localization (thanks to Javier Ibarz Verdn)


OS X 10.4 or later

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iResize User Discussion

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DobaKung Member IconReview+0

It has all features you want for resizing and compressing photos. It can handle a batch-compression and resizing very well.

Reply0 replies
Version 3.2.6
Jjpong Member IconComment+121

Taking a good look at its horizontal sliders, I have a feeling that this application is developed with READL Studio.

Reply0 replies
Version 3.2.6
Fixx Member IconReview+1

does not understand 16 bit images. Interface weird (no process button or similar). Was not useful, images displayed just noise after conversion.

Reply0 replies
Version 3.2.5
Fredducker Member IconComment+43

I dropped a bunch of images onto the program, but I'm not sure what to do next to launch the process. Cannot see an action button anywhere.

Reply0 replies
Version 3.2.4
InspiredLight Member IconReview+3

Thanks for this free app.
I had an earlier version and it was making images significantly darker. I was doing a size reduction.

So I updated to 3.2.4, and it now makes the same image a little lighter when doing the same size reduction as before. The difference is less significant, but still noticeable. I thought perhaps this is normal when a JPEG is reduced in size, although I'd never noticed it before. So...

For comparison: If I resize the same image in Photoshop I get zero (no noticeable) change in the image appearance. So it seems to me that either I am doing something incorrectly with this app, or this app doesn't maintain the exact same saturation / contrast / brightness, or something along those lines.

Otherwise, it's a great app. Fast and easy to use. And very cost effective. Just make sure you're pictures are coming out the way you wanted.

Reply2 replies
Version 3.2.4

I have just tried another free app here on MacUpdate called SmallImage (3 beta). It does a fine job of resizing without changing the image appearance. Looks like I'll stick with that one.


Thanks for the tip. I'm surprised you gave it 4 stars, as I'd consider this issue close to a deal-breaker.

7Gary Member IconReview+0

Looked for a program to reduce jpg files for uploading; this one looks like a winner for my simple needs.


Reply0 replies
Version 3.2.4
Jstrait Member IconReview-2

I was (am still) looking for a replacement for my Photoshop CS4 droplet. I don't want to fork out the $ for CS5, particularly with CS6 around the corner and unfortunately CS4 droplets are PPC and no longer work in Lion.

This COULD be a solution for me but some critical things are missing.
-Drag and drop (droplet) functionality
-Sizing for a maximum length AND width (vs picking one or the other which leaves horizontals a different size than verticals.)

Add those two functions and I would gladly PAY!!!

It's hard to give a free app anything less than a five star review but I figured I had to be objective. :)

Anyone with a suggestion for me would be SO appreciated! (reply to review)

Reply0 replies
Version 3.2.4
Stubbornlikeamule Member IconReview-5

I'm using OSX Lion, and this just didn't work. Dragged an image to be re-sized, no preview, and nothing happened when I tried to save it.

Reply1 reply
Version 3.2.4

I can't confirm any issue under Lion. Everything works fine

Ddstuff Member IconComment+17

This app saves me from using Photoshop for resizing every image. This one does them all with little effort! Awesome!

Reply0 replies
Version 3.1.1
Darth Brooks Member IconReview+36
Darth Brooks

Very nice, thanks! Just resized a folder of 356 JPGs 2272x1704 @ 180ppi to 1600x900. The resized pics are 72ppi and there seems to be no provision to select or maintain resolution... uh... this app is FREE? Ten stars!

Reply0 replies
Version 3.0
user icon+53
Version 3.2.6
user icon+0
Version 3.2.4
user icon+0
Version 3.2.4
user icon+0
Version 3.2.4
user icon+9
Version 3.2.4
user icon+0
Version 3.2.4
user icon+0
Wei Chang
Version 3.2.3
user icon+0
Version 3.2.3
> 4 25


Current Version (3.x)


Downloads 126,832
Version Downloads 28,789
License Free
Date 12 Jun 2013
Platform OS X / PPC 32 / Intel 32
Price Free
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