Free Mac software for PNG and JPEG fast optimization

ImageOptim for Mac

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ImageOptim 1.5.1

  -  1.6 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of ImageOptim 1.5.1.


For those interested in downloading the most recent release of ImageOptim for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download ImageOptim 1.5.1

  • ImageOptim 1.5.1 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    ImageOptim 1.5.1 Screenshot 1
  • ImageOptim 1.5.1 Screenshot 2
  • ImageOptim 1.5.1 Screenshot 3

What's new in this version:

- New: Copy as Data URL (copies small image files to clipboard as data:image/… URIs for easy inlining in CSS/HTML)
- Less noisy output when run from command line
- Updated translations for Russian, Czech, Danish, Greek, Italian, Japanese, Norwegian, Polish, Portugese, Turkish, Vietnamese and Chinese.
- Workaround for Code Signing problems (*shakes fist at Apple*)

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