Caesium – 开源图片压缩工具


Caesium 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.

Caesium Image Compressor is a free, open source image compressor that can reduce the size of your pictures up to 90% without losing from the original quality.

You can use this program for many purposes: save space on your hard drive, reduce the size of images so that you can upload them faster on various websites or blogs. It is a valuable tool for webmasters/bloggers/photographers who look to optimize their collection of images in order to reduce the loading time for their website visitors. This software will allow you to view compression results which is useful especially when you don’t know which optimization type you need (it has several different compression levels available). It is currently available in 2 flavors as a Windows® installer (setup) and portable.

Trademark Note 1: Microsoft®, Windows® and other product names are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.


– preserve the original file format without loosing 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.
– multilanguage support.
– drag and drop feature available.

在线版本:Caesium Image Compressor – Online

官方下载页面:Caesium – Image Compressor (

网盘下载:免安装便携版 – 蓝奏云 (



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