# ImageOptim for Mac

> Smaller images, same pixels.

Drop images in and ImageOptim strips metadata and recompresses with the best tools available, losslessly by default.

## Facts

- Price: Free and open source
- Developer: Kornel Lesiński
- Category: Design & Photo
- Website: https://imageoptim.com/mac
- Homebrew cask: imageoptim
- Source code: https://github.com/ImageOptim/ImageOptim
- License: GPL-2.0
- GitHub stars: 10k
- Last commit: 2026-07-13
- Facts checked: 2026-10-19
- MacWorthy page: https://macworthy.com/apps/imageoptim/

## Install

Homebrew:

```sh
brew install --cask imageoptim
```

## Questions

### Is ImageOptim free?

Yes. ImageOptim is free and open source under the GPL-2.0 license. The source code is on GitHub at ImageOptim/ImageOptim.

### Where can I download ImageOptim for Mac?

Download ImageOptim from the developer's website (imageoptim.com) and GitHub. MacWorthy links only to official sources.

### Can I install ImageOptim from the Terminal?

Yes. With Homebrew, run `brew install --cask imageoptim`.

### What are good alternatives to ImageOptim?

Other design & photo apps for Mac worth a look are Pika (open source), Squash (one-time purchase), ImageFlow (open source) and Equinox (open source).

## Alternatives in Design & Photo

- [Pika](https://macworthy.com/apps/pika/): A colour picker with contrast built in. (Open source)
- [Squash](https://macworthy.com/apps/squash/): Batch image compression and conversion. (One-time purchase)
- [ImageFlow](https://macworthy.com/apps/imageflow/): Non-destructive image editing with nodes. (Open source)
- [Equinox](https://macworthy.com/apps/equinox/): Make your own dynamic wallpapers. (Open source)
- [RasterFox](https://macworthy.com/apps/rasterfox/): Shrink images and check the result side by side. (Free + Pro)
- [Pixelmator Pro](https://macworthy.com/apps/pixelmator-pro/): A pro image editor, built entirely for the Mac. (One-time purchase)
- [Affinity](https://macworthy.com/apps/affinity/): Pro vector, pixel and layout tools in one app. (Free)
- [Sketch](https://macworthy.com/apps/sketch/): The native interface design tool. (Subscription)

Tags: compression, open source