ImageOptim
Universal version latest seen at v1.9.3 · Reported by 131 Macs in the community.
All sighted native versions (6):
Sighting data is community-sourced — version availability and pricing should be verified with the developer.
ImageOptim is a lightweight image optimization tool for macOS that reduces file sizes of PNG, JPEG, GIF, and other image formats without compromising visual quality. It's designed for web developers, designers, and content creators who need to optimize images for faster web delivery. The app bundles multiple compression engines (like PNGOUT, Zopfli, and ImageAlpha) into a simple drag-and-drop interface, making batch optimization quick and effortless. Users simply drag images onto the app window or use the folder watcher to automatically optimize images as they're saved. It's particularly popular among web professionals and developers who need to reduce image file sizes as part of their build workflow.
AI Recommendation
1 suggestionGreat news: ImageOptim has been updated to a native Universal Binary build. Version 1.9.3 adds full Apple Silicon support, so you can update to the latest version and run it natively on your Mac without Rosetta 2. Simply download the latest version from the official ImageOptim website and upgrade—no app switch needed. The native version has been confirmed running on multiple Macs in the wild and includes all the same image optimization features you're used to.
Recommended reading
What happens to your Intel apps in macOS 28