ImageOptim
ImageOptim is a free, open-source desktop utility for macOS. ImageOptim is a GUI for lossless image optimization tools: Zopfli, PNGOUT, OxiPNG, AdvPNG, PNGCrush, JPEGOptim, Jpegtran, Guetzli, Gifsicle, SVGO, svgcleaner and MozJPEG. It has 10,017 GitHub stars and is released under the GPL-2.0 license.
github.com/ImageOptim/ImageOptim (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About ImageOptim
ImageOptim is a GUI for lossless image optimization tools: Zopfli, PNGOUT, OxiPNG, AdvPNG, PNGCrush, JPEGOptim, Jpegtran, Guetzli, Gifsicle, SVGO, svgcleaner and MozJPEG.
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Is ImageOptim free and open source?
Yes. ImageOptim's source code is public on GitHub under the GPL-2.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install ImageOptim?
Download it from the project website or build it from source by following the README on GitHub.
Is ImageOptim still maintained?
The repository's most recent commit was on Jul 13, 2026. appsgit only lists apps whose repository had a commit in the last six months.