ImageOptim for MAC
Free, open-source Mac app that makes images smaller without losing quality and strips private metadata. Drag and drop JPEG, PNG, GIF and SVG.
ImageOptim Overview
ImageOptim makes images load faster by making their files smaller without losing quality. Drag images onto its window and it runs several of the best optimization tools automatically, such as MozJPEG, pngquant, OxiPNG, Zopfli and SVGO, and keeps the smallest result. It works with JPEG, PNG, animated GIF and SVG files. It also removes invisible junk: private EXIF metadata such as GPS position and camera serial number, embedded thumbnails, comments and unneeded colour profiles, so you can publish images without exposing private information.
By default ImageOptim is lossless and never lowers image quality. If you want much smaller files, you can turn on lossy compression in its Preferences, and you can keep metadata if you need it. ImageOptim is made by Kornel Lesiński and is free and open source under the GNU GPL version 2 or later. Version 1.9.3 runs natively on Apple Silicon and Intel Macs and needs macOS 10.15 or later. Older versions are available for older systems.
Key Features
ImageOptim shrinks images without making them look worse.
- Lossless by default: smaller files, same quality.
- Drag and drop: drop images or folders onto the window.
- Best tools combined: MozJPEG, pngquant, OxiPNG, Zopfli, SVGO and more.
- Many formats: JPEG, PNG, animated GIF and SVG.
- Privacy: removes GPS position and camera details.
- Lossy option: much smaller files when you allow it.
- Keep metadata: an option if you need copyright info.
- Universal: native on Apple Silicon and Intel.
What’s New in Version 1.9.3
ImageOptim 1.9.3 adds Apple Silicon support.
- Runs natively on Apple Silicon
- Updated OxiPNG, MozJPEG, pngquant, SVGO and Guetzli
ImageOptim FAQ
Is ImageOptim free?
Yes. ImageOptim is free and open source under the GNU GPL version 2 or later.
Which macOS version does ImageOptim need?
ImageOptim 1.9.3 needs macOS 10.15 or later. Older versions are available for older systems.
Does ImageOptim run on Apple Silicon?
Yes. Version 1.9.3 runs natively on Apple Silicon and Intel Macs.
Does ImageOptim lower image quality?
Not by default. It is lossless unless you turn on lossy compression in Preferences.
Which image formats does ImageOptim support?
JPEG, PNG, animated GIF and SVG.
Does ImageOptim remove metadata?
Yes. It strips private EXIF data such as GPS position and camera serial number. Uncheck Strip JPEG metadata in Preferences to keep it.
How do I use ImageOptim?
Drag images or folders onto its window. It optimizes them in place.
Why is it slow on PNG files?
PNGOUT and Zopfli are thorough but slow. Uncheck them in Preferences for faster results.
Can I install ImageOptim with Homebrew?
Yes. Run brew install --cask imageoptim.
Where does the ImageOptim download on imageoptim.FULLMAC.app come from?
The download button leads to the official ImageOptim website at https://imageoptim.com/mac. imageoptim.FULLMAC.app does not change or repackage the app.
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