You can compress the images online using <a href=«https://tinypng.com/» target=«_blank» rel=«noopener noreferrer»>TinyPNG</a>, <a href=«https://shortpixel.com/online-image-compression» target=«_blank» rel=«noopener noreferrer»>Shortpixel</a>, and <a href=«https://www.optimizepng.com/» target=«_blank» rel=«noopener noreferrer»>OptimizePNG</a>.</li>