KuaiZip is a free, convenient, fast compressor and decompressor, with advanced compression technology and a proprietary of compression format(KZ). KZ is a high ratio and fast format. KuaiZip support more than 40 compression formats such as RAR,ZIP,7Z etc. KuaiZip also can mount compressed archives, CD/DVD images and virtual disk files. Features: Super compression ratio Support all basic and advanced features of a compression tool, The proprietary format KZ is a high and fast format. Support all prevalant formats Support more than 40 prevalant compression formats, even mounting compressed archives, CD/DVD images and virtual disk files. Convinient transmission Split files to many volumes, widely used by large archive files transmission. Clear up history, protect privacy Record and clear up all history with one key, protect your privacy.