Apps similar to PngOptimizer include Caesium Image Compressor, which is free and open source. Other options are Dinky, GetCompress, ImageOptim and TinyFast. You're spoiled for choice with Image Optimizers like PngOptimizer: we list more than 50 alternatives for Mac, Windows, Linux, the web and Android.
Image Compressor is a desktop software to compress images in your computer and/or change the extension. You could reduce up to 99% of the original size! Compress any image and save size with almost the same quality.
Pichi for Mac is the best and quickest tool for optimizing and resizing your images individually or in batches.
