The 1.2.1 version of AlienImages for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Design & Photo Tools, more precisely Converters. This Mac app was originally designed by AliensСrypt.
From the developer:
With AlienImages you can easily convert single or multiple image formats including .ICNS. RAW & .ICO files with a single click in-between the following formats: JPEG, JPEG2 ( Jpeg 2000), GIF, TIFF, TGA, PNG, PSD, PDF, BMP. This app has an user friendly interface.
You may want to check out more Mac applications, such as SWFFork, PDF 2 PICT or InterChangeX, which might be related to AlienImages.