Optimage

Optimage is an advanced image-optimization tool to minimize images in a visually lossless way for websites, apps, storage, and sharing. It uses advanced metrics to automatically adjust image quality for up to 10x smaller image files that are visually perceived as originals. Maximum compression ratio is achieved by exhaustively trying various compression parameters and image-data structures, using novel and traditional heuristics. Simple native GUI and universal CLI clients are built to work efficiently across many different platforms on desktops and servers. Features Lossy (visually lossless) and lossless optimizations Referenceless image-quality assessment Negligible degradation on subsequent runs Nearly optimal compression Fast parallel processing on modern multi-core CPUs Advanced-quality metrics based on human perception Full color management with ICC v4 profile support Smart Convert-to-sRGB option Integration with system file managers Extremely simple optimization settings Strips excessive metadata (Exif, XMP, IPTC, comments, etc.) Losslessly auto-rotates JPEG photographs according to Exif Orientation tag Preserves useful metadata (Android 9-patches, aPNG, etc.) Handles most popular image formats: JPEG and PNG, GIF, and SVG Cross-platform CLI and GUI Minifies Windows icons/favicons (ICO) and Apple icons (ICNS) Supported file types: JPEG PNG GIF SVG ICNS ICO