KuaiZip 2.3.2

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.


  •     Super compression ratio
  •     Support abasic and advanced features of a compression tool, The proprietary format KZ is a fast format.
  •     Support all prevalent formats
  •     Support 40 compression formats, even mounting compressed archives, CD/DVD images and virtual disk files.
  •     Convenient 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.


  •     Proprietary archive file format (KZ) algorithm, compression ratio increased 5-30%.
  •     Support KZ,ZIP,7Z,ACE,ARJ,BZ2,CAB,GZ,ISO,JAR,LZH,TAR,UUE,Z etc. more than 40 formats.
  •     Friendly and easy interface and detailed wizard for new users.
  •     Support multi-volume compression and solid compression.
  •     Encrypt,protect,lock,recover and test compressed archives.
  •     Multi-threaded, multi-level, multi-mode compression and decompression.
  •     Powerful self-extracting package.
  •     Add and view compressed archive comments.

Download: KuaiZip 2.3.2 | (4.2 MB) Freeware
View: Homepage
Screenshot: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

Report a problem with article
Previous Story

Facebook f8 conference keynote; Timeline, Ticker, OpenGraph, Music [Video]

Next Story

Netflix support coming to Facebook, but not for US users


Still prefer 7-Zip (and WinRAR). I did a very quick compression test on an XP ISO and the .7z archive was smaller than the .kz archive.

I also noticed there are quite a few spelling and grammatical errors in the UI. Screenshots below...


In the last screenshot, checking the "Do not prompt" box and then clicking OK will make KuaiZip become the default archiving program on your computer. This is confusing IMO because you are effectively being asked two questions.

Commenting is disabled on this article.