State of the art wavelet based compression to reduce sizes while achieving better quality. Used for images, documents and video compression.

A C++ implementation of the JPEG2000 standard by one of its original authors; test versions for Win32, Linux and Solaris available [Commercial]

Developer of ReaCompressor an image compression utility, besides an image editing program Reastyler.

Compress images with almost no visible image quality loss. Evaluate the original image with up to five different variations to find out the best quality and compression level. Create and save color palettes.

Optimize JPG images. Features include a flexible JPG compression engine especially optimized for higher image quality, as well as a graphic detail quality equalizer. Ability to acquire images from TWAIN compliant devices. (Windows 95/98/Me/NT/2000)

Image optimization engine for JPEG, GIF, PNG image compression, color palette tunes ups, thumbnail generation, image format conversions, image printing, batch processing and other functions.

From VIMAS Technologies, it's a commercial optimizer with support for both lossless and lossy modes, and full alpha support. It can be run as an Adobe PhotoShop plug-in module or as standalone application. A free image viewer is included.[Windows 9x/NT]

Optimize 3D models for real-time visualization. Minimize file size and increase rendering performance.

Specializes in one task, optimization of graphics for the web.

Shrinks GIFs without any noticeable reduction of picture quality, feature batch optimizations by name, size, and bytes saved. [Freeware]