OptiPNG - OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without...
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
JPEG Resampler - Jpeg Resampler, nástroj pro konverzi a změnu velikosti obrázků, snadné použití, zdarma
Image Compressor by RedKetchup - Compress the file size of a PNG, JPEG, WEBP, or HEIC image online. Reduce the image dimensions based on KB or MB. Improve the quality of PNG compression with dithering.
pngquant - command-line utility and library for lossy compression of PNG images
TinyJPG - Compress JPEG images with perfect quality and file size