November 2009
ImageOptim - a PNG/JPEG graphics optimizer for Mac OS X
by 2 others"ImageOptim is a front-end (GUI) for set of tools for optimisation of PNG/JPEG images and GIF animations. 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."
ConvertIcon!
by 17 othersConverticon is a simple icon utility. It can import ICO, PNG, GIF, and JPEG formats and export to high-quality PNG or ICO files. There is no software to download and it's 100% free.
August 2009
punypng - PNG Image Optimization and Compression - Gracepoint After Five
by 7 otherspunypng is a free optimization service that can dramatically reduce the file size of an image by converting it into a highly-compressed, lossless PNG image. Whether you have a GIF, JPEG or PNG, use punypng for outrageously fast page loads and help make the web more puny!
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