Caesium Image Compressor is a free, open-source, advanced compression tool for photos and images (JPG, PNG, GIF), supporting batch, preview, and many more. Caesium saves space and makes uploads faster. Caesium Image Compressor is a multiple award-winning software developed for simplicity and effectiveness.

With more than one million worldwide downloads, Caesium Image Compressor 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.

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.

Features and Highlights

Reserve the original file format without losing any visual quality
No additional software required to open compressed files
Process files in batch mode
Choose the compression level with a simple slider
Choose the different compression levels of each image
Support for custom suffix
Side by side (comparison) preview, with original and compressed pictures
View details using the zoom function
You can custom visualization options
Support for common file formats
Support for date/time and metatag