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ImageOptim is a front-end (GUI) for set of tools for optimisation of PNG and JPEG images.

Optimisation makes files smaller (in terms of disk space) by finding optimal compression parameters and by removing unneccessary information, like file comments, EXIF tags and color profiles.

What's New

Version 1.6.2b3:
  • Much faster version of Zopfli (almost twice as fast)
  • Updated pngcrush, pngquant2, MozJPEG
  • Runs tools with lower priority (OS X 10.10+ only)
  • Updated Chinese localization (by pluwen)


  • OS X 10.8 or later

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4.7 35


Current Version (1.x)


Downloads 46,757
Version Downloads 1,278
License Free
Date 19 Jul 2016
Platform Intel 64 / OS X
Price Free
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