| 1StepUnzip | | Easy to use shareware tool for unzipping and installing your downloaded Internet files. |
| 7-Zip | | Command-line and Windows shell utility for manipulating ZIP archives. Supported formats: ZIP, CAB, RAR, GZIP and TAR. |
| Archive Comparison Test | | A set of benchmarks designed to show the state of the art in lossless data compression, by Jeff Gilchrist. |
| BitJazz Inc. | | Lossless compression for photoquality images. Cross-platform. SDK. Free reader. |
| Cabextract | | Portable UNIX decompressor for the Microsoft Cabinet (.CAB) format. |
| CAM Development - CAM UnZip | | Free zip file utility, which allows you to quickly, open, create, and modify ZIP archives. In addition, CAM Unzip supports password protection, and can run an archive's Setup file automatically after it is unzipped. |
| CoffeeCup Free Zip Wizard | | Free Zip/Unzip utility. CoffeeCup Free Zip Wizard has built-in E-mail and FTP functions, so you can Zip and send your files in one easy step. |
| ExpressZIP | | ZIP and UNZIP Management complete with built-in Wizards to walk you through creating ZIP and EXE (self extracting) archives. |
| FilZip 2000 | | Free application to handle a variety of archive file formats, including .ace, .arc. arj, .cab, .gz, .lha, .jar, .rar, .tar and of course .zip. (Win 9x/NT/2000/Me) |
| Hifn Inc. | | Designs, develops, and markets compression processors, encryption/compression processors, and software which provide alternatives for the implementation of high performance networks and tape storage devices. (Nasdaq: HIFN). |
| JET-Software | | Software house in Germany, with compression products for mainframe, midrange and mini systems. |
| Maximum Compression | | Aims to show the maximum achievable compression ratio for several filetypes (text, executable). The best 80-100 programs for every filetype are shown in a table indicating compression ratio and switches/options used to achieve that compression. |
| Official RAR archiver site | | Downloads, Support, Tips, Tricks and Tools. The RAR format, like the other newer formats (bZip, and SIT) compresses files better than the popular, but older Zip algorithm. |
| QccPack | | Quantization, Compression, and Coding Library. C source code freely available. |
| QuikCAT Technologies | | Specializing in data compression software technologies for wireless transmission, Internet acceleration, Microsoft Exchange and Lotus Notes E-mail acceleration, and PDA video conferencing, using cellular automata transforms. |
| Rarissimo | | Companion tool for WinRAR for preserving NTFS alternate streams. |
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