# Caesium Image Compressor (open-source desktop utility)

> Caesium Image Compressor is a free, open-source desktop utility for Windows, macOS and Linux. Caesium is an image compression software that helps you store, send and share digital pictures, supporting JPG, PNG, WebP and TIFF formats. It has 6,375 GitHub stars and is released under the GPL-3.0 license.

Try it directly on browser at caesium.app Caesium is an image compression software that helps you store, send and share digital pictures, supporting JPG, PNG and WebP formats. You can quickly reduce the file size (and resolution, if you want) by preserving the overall quality of the image.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Lymphatus/caesium-image-compressor |
| Platforms | Linux, macOS, Windows |
| Interface | desktop GUI |
| GitHub stars | 6,375 |
| License | GPL-3.0 (open source) |
| Replaces | n/a |
| Language | C++ |
| Website | https://saerasoft.com/caesium |
| Official | no |
| Category | Archivers, cleaners & system utilities |
| Latest release | v2.8.5 (May 17, 2025) |
| Last commit | Oct 5, 2026 |

## Install

Download a build for your system from the project's releases (https://github.com/Lymphatus/caesium-image-compressor/releases) or website, or build it from source by following the README.

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