This tool can compress your PNG images so they will have a smaller file size (bytes). It uses multiple compressing modules/techniques to get the smallest file size possible. By reducing the file size of web image files it will take less time to load the image on one of your web pages.
The compression technique behind this online compressor is developed to compress the images to the smallest file size possible by minimizing the amount of colors used in your image as well as using the optimal compression settings. You won't be able to see the difference in the picture itself with the eye but the file size will be significantly lower.