Crunch is a free, open source macOS GUI application that is built on pngquant and zopflipng PNG image optimization. It uses a lossy approach to PNG image optimization. The tool is available through Homebrew as a native macOS application. `$ brew cask install crunch` Image examples + compression ratio analysis available on the Github repository README. MIT license.
Optimage is an all-in-one image optimization tool that provides the highest compression ratio at consistent visual quality. It can automatically resize, convert and compress over 20 common image and video formats.
A free app that makes images load faster and take less disk space, without sacrificing quality. Removes private EXIF data from photos and improves compression.
Pichi is a Mac app for quickly optimizing and resizing PNGs and JPEGs. We wanted to speed up our daily workflow by making image optimization faster. The UI is minimal and options kept to the bare minimum. Turn on the drag UI in the prefs and use the app when it's closed by holding a modifier when dragging images in Finder ⏱💪