ImageOptim is a free, open-source lossless image optimizer for macOS: combines several top compression engines (MozJPEG, pngquant, SVGO, Zopfli) and strips unnecessary metadata (EXIF, GPS, color profiles) via simple drag-and-drop batch processing.
Desktop app is completely free. A separate ImageOptim API (cloud service) starts at $12/month for automated/programmatic use.
Mac users wanting straightforward, no-cost lossless compression with genuine privacy benefit (metadata/GPS stripping) for a batch of local images.
Metadata stripping (EXIF, GPS coordinates) happens by default, a real privacy benefit worth knowing about before sharing photos that might otherwise leak location data.
