Image optimizer binary to use with Optimize Images or windows command prompt Config for Optimize Images of vscode : "optimizeImages.app": "C:\\Path to\\IOptimizer\\IOptimizer.exe", "optimizeImages.appOptions": ["[filepath]" , "-b"], "optimizeImages.searchIgnoreFolders": [".git"], Application arguments : you can specify file or folder immidiately after the command like : IOptimizer.exe "src" -options -i, --input Set input file or folder to compress, if input is folder you must specify with -f -f, --filter Set filter to search in folder , example: -f *.png -r, --recursive (Default: false) Search recursively all sub folders -l, --lossy (Default: false) Convert lossy or not -b, --backup (Default: false) Whether to backup original files or not --help Display this help screen. --version Display version information.