OptiPNG is described as 'command-line PNG optimizer that recompresses image files to a smaller size, without losing any information' and is an app in the OS & Utilities category. There are more than 25 alternatives to OptiPNG for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Wordpress. The best alternative is ImageOptim. It's not free, so if you're looking for a free alternative, you could try TinyPNG or PNGGauntlet. Other great apps like OptiPNG are E-mage (Free, Open Source), pngquant (Free, Open Source), Pingo Web Image Optimizer (Free) and Pinga (Free).
- 28 alternatives