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ImageAlpha greatly reduces file sizes of 24-bit PNG files (including alpha transparency) by applying lossy compression and conversion to a more efficient PNG8+alpha format. Such images are compatible with iOS, all browsers, and even degrade well in IE6.

What's New

Version 1.5.1:
  • Upgraded to pngquant 2.10
  • Compatibility with macOS 10.13 High Sierra


  • OS X 10.8-10.11

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ImageAlpha User Discussion


Current Version (1.x)


Downloads 296
Version Downloads 201
License Commercial
Date 27 Jul 2017
Platform Intel 64 / OS X
Price Free
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