Caesium Image Compressor
Compress your pictures up to 90% without visible quality loss
Caesium is a free software developed for simplicity and effectiveness.
Caesium is one of the most popular image optimization software available helping photographers, bloggers, webmasters, businesses or casual users at storing, sending and sharing digital pictures.
Image Compressor
Providing a simple yet effective interface with a real-time preview and multiple image processing at the same time, everyone will be able to reach the best result. Advanced users will find extra features, like metadata storing options or folder structure support.
Command Line Tool
If you are working on Linux or MacOSX and want to be geeky, you can use the Command Line Tools, which are the pulsing heart of Caesium. You can compress images with advanced tools very quickly. It works on the command line!
Online Compressor
Just have a few bunch of images to compress and you don't want to download a dedicated software to accomplish the task? Do it online!
Downloads
Select the right version for you
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| v2.5.1 | ||
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| Windows 10 (build 1809) or later | ||
| Installer | Download Alternative mirror | |
| Portable | Download Alternative mirror | |
| macOS (10.15+) | ||
| DMG | Download Alternative mirror | |
| Mirror are hosted on fosshub.com | ||
| Old releases at Github | ||