Download of IMAGEmini 1.60 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The software belongs to Design & Photo Tools. This software for Mac OS X is a product of effectmatrix.
From the developer:
A powerful photo re-sizer and optimizer, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality.
IMAGEmini, a powerful photo re-sizer and optimizer for Mac OS X, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality and png, jpg, gif formats.
You may want to check out more software for Mac, such as ImageBuddy, particleIllusion or Mazaika, which might be similar to IMAGEmini.