ImageOptim

It is a Mac app and web service that compresses images to reduce file sizes, save disk space and bandwidth, and make web pages and apps load faster while preserving quality and removing bloated metadata such as EXIF, thumbnails, and color profiles. It is for developers and designers who publish images for the web and for Mac and iPhone/iPad apps, and for general consumers managing image files. It is delivered as a free and open-source application for macOS with drag-and-drop, Dock, Finder Services, and command-line use that combines multiple optimization engines.

Key features

• Compress images without losing quality
• Remove EXIF metadata and thumbnails
• Strip unnecessary color profiles
• Drag-and-drop image optimization
• Combine MozJPEG pngquant Pngcrush tools
• Use SVGO and Google Zopfli
• Enable lossy minification option
• Compress JPEG PNG SVG GIF
• Integrate with macOS Dock and Finder
• Launch from command line and Sketch