I believe this website uses pngquant to perform the optimization. You can get th... | Hacker News

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		pornel on June 27, 2012 \| parent \| context \| favorite \| on: TinyPNG: Lossy compression for PNG that preserves ... I believe this website uses pngquant to perform the optimization. You can get the tool from http://pngquant.org (it's open-source and pretty easy to use as a library too).

mrjd on June 27, 2012 [–]

You're right, it's listed on pngquant's site too as one of the GUI's.

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