ImageOptim is a macOS image optimizer and GUI image compressor designed to reduce image file sizes for web and disk storage. It functions as a lossless image optimizer that removes unnecessary metadata and optimizes encoding to reduce file sizes without losing pixel data.
The application handles macOS media asset management and web image preparation by shrinking files to improve website loading speeds and reduce storage usage. It provides both lossless and lossy compression options to maintain visual quality while reducing the disk space used by images.