Install imageoptim with Homebrew Cask

Project links

• Homepage
• Package manager page

Commands and aliases

No executable aliases were found in the local package database.

Project history

ImageOptim was created by Kornel Lesiński as a free, GPL-licensed macOS front end for image optimization tools. Early releases supported PowerPC-era versions of Mac OS X, and the project has continued through successive macOS architecture and compatibility transitions.

Over time it incorporated tools including AdvPNG, Gifsicle, JPEGOptim, jpegtran, MozJPEG, OxiPNG, pngquant, SVGO, svgcleaner, Guetzli, and Zopfli. Later releases added lossy minification, SVG optimization, Apple Silicon support, and updated signing and update mechanisms.

Adoption history

ImageOptim became a familiar macOS utility for web developers and designers because it offers a drag-and-drop interface while also integrating with Finder Services, the Dock, Apple Mail, scripts, and command-line workflows. The official GitHub repository has accumulated a substantial contributor and user community.

How it is used

Users drag images or directories into the application, onto its Dock icon, or invoke it through Finder Services and command-line launch mechanisms. ImageOptim runs multiple compressors automatically and replaces files with the smallest result. Optimization is lossless by default; preferences control metadata stripping, backups, speed, individual engines, and optional lossy minification.

Why package nerds care

ImageOptim is a classic package-nerd application because it provides a native GUI over a changing collection of specialist optimization engines. It offers access to aggressive compression tooling without requiring users to install, tune, or sequence each compressor themselves.

Its long macOS compatibility trail, open-source code, bundled subprojects, automation hooks, and lossless-by-default policy make it useful both as an everyday desktop utility and as a visible map of the image-compression ecosystem.

Timeline

• 2005-era compatibility: Early ImageOptim releases supported Mac OS X Tiger.
• 2012-era releases: Finder Services, Retina assets, Zopfli, and broader automation features appeared in the 1.4 series.
• 1.6 series: ImageOptim adopted MozJPEG and expanded lossy optimization.
• 1.7 series: SVG optimization and Guetzli support were added.
• 1.9.3: The release added Apple Silicon support and updated major bundled optimizers.

Related projects

• pngquant
• MozJPEG
• OxiPNG
• Gifsicle
• SVGO
• Zopfli
• ImageOptim-CLI

Sources

• https://github.com/ImageOptim/ImageOptim
• https://imageoptim.com/changelog.html
• https://imageoptim.com/howto.html
• https://imageoptim.com/mac