punypng - PNG Image Optimization and Compression - Gracepoint After Five

punypng - PNG Image Optimization and Compression - Gracepoint After Five
punypng Benchmarks | Gracepoint After Five

* punypng: the new kid of the block.
* smush.it: Uses pngcrush as the main PNG optimizer. Currently, available in Yahoo’s YSlow Firefox plug-in. I believe it uses the -brute option for pngcrush.
* OptiPNG: A slighlty better algorithm, compared to pngcrush. In case you’re wondering, Google’s PageSpeed plugin also uses OptiPNG for it’s compression library.
* ImageOptim: The heavyweight contender. Available for OS X, ImageOptim uses every major library out there: advdef, pngcrush, optipng, pngcrush, jpegoptim, jpegtran, and optionally pngout. I ran this the benchmarks with pngout enabled.

Ajaxian » punypng: crushing your images even more