CSS Reference vs OptiPNG
A side-by-side look at CSS Reference and OptiPNG. For an in-depth review of either product, follow the links below.
CSS Reference
Development
CSS Reference is a free web-based reference for Cascading Style Sheets (CSS) covering the latest web standards. It provides a quick and interactive guide to all common CSS properties and definitions, along with examples.
cssweb-designstyle-sheets
OptiPNG
Photos & Graphics
OptiPNG is an open-source PNG optimizer that reduces the file size of PNG images while preserving transparency. It works by applying lossless compression and interpolation methods.
pngoptimizercompressiontransparency
Related Comparisons
ImageOptim
PngOptimizer
Pngyu
IMGCentury Image Compressor
tinyPNG.App
Trimage