Cognaxon WSQ viewer 3.5 is a free software that allows users to view and convert WSQ files into 33 other graphic file formats, including BMP, TIFF, JPG, PNG, and GIF. The software supports a range of file formats, making it versatile and easy to use.

In addition to its wide range of supported formats, the WSQ viewer is small and fast, taking up less than 1 megabyte of storage. The software also includes an image zoom toolbar and supports accelerated navigation through files in the directory using keys page up / page down / home / end. This makes it easy to quickly navigate through files and find the specific file you need.
One of the best features of the WSQ viewer is its ease of use. After installation, *.wsq files can be easily opened in Windows Explorer with a simple mouse double click. This makes accessing and viewing WSQ files quick and hassle-free.
Overall, I would highly recommend the WSQ viewer to anyone looking for a reliable and fast software to read and convert between WSQ and other graphic file formats. It is also important to note that the WSQ viewer is the demo version of WSQ (FBI's Wavelet Scalar Quantization) library add-on available as SDK for software developers. This means that the WSQ viewer is just the beginning and more advanced software is available for developers who need it.
Version 4.1: the number of supported graphic file formats increased from 12 to 32