- GZIPSite Website Compression - Tool that can help you make static HTML websites run 50% faster and save 50-80% of the bandwidth.
- Xceed Software Inc. - Makers of Zip and Unzip data compression controls for Windows developers that use ActiveX, OCX, VBX and DLLs.
- RAR/WinRAR support site - A support site for RAR and WinRAR archivers.
- 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).
- Archive Comparison Test - A set of benchmarks designed to show the state of the art in lossless data compression, by Jeff Gilchrist.
- USENET Compression FAQ - This URL takes you to a compression FAQ that explains compression to technical people as well as describing the various programs, and what they do to users.
- SolutionSoft Systems, Inc. - E-Space, compression software for online archiving and disk space management.
- Video Compression Components - Third-party video compression software components for programmers.
- 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.
- JET-Software - Software house in Germany, with compression products for mainframe, midrange and mini systems.
- BitJazz Inc. - Lossless compression for photoquality images. Cross-platform. SDK. Free reader.
- ZBit Inc. - COM objects to Zip and Unzip files.
- QccPack - Quantization, Compression, and Coding Library. C source code freely available.
- RICAZip - High performance lossless image compression applications, utilities and libraries.
- 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)
- WinAce - Shareware utility. When compared to WinZip the most important advantage of WinAce is better compression.
- Smacker Video Technology - A compressor for video, animation and sound data includes video compression with twice the video quality and now uses the Bink audio codec for perceptually lossless 8 to 1 compression.
- Rarissimo - Companion tool for WinRAR for preserving NTFS alternate streams.
- Automatic File Archiver by JSPayne - Does automatic archiving and backup of recently modified.
- ZipMail - Compression for Lotus Notes, that automatically compresses attached files into ZIP files or self-extracting files. Features full integration with the Lotus Notes email client software.
- Zipsearch - Zipsearch is shareware to search compressed zip archives for files inside archives. The program finds text strings within the files for viewing and changes.
- Maximum Compression - Aims to show the maximum achievable lossless data compression ratio for several filetypes (text, executable, bmp). The best 150+ programs for every filetype are shown in a table indicating compression ratio and switches/options used to achieve that compression.
- 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.
- 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.
- zlib - A massively spiffy yet delicately unobtrusive compression library.
- x-PRESS - Delivers cross-platform data compression for data transfer, archiving, and retrieval.Part of the CoSORT family of sort and data manipulation solutions.
- Info-ZIP - Free, portable compression and extraction utilities for archives compressed in .zip format. Discussion forum, source code, and binaries for several platforms.
- ncompress - Free LZW file compressor mainly used for creating tar.Z archives, released as source code. For UNIX systems.
- Zzip - A compression tool under GPL. Zzip compression algorithm is mainly based on the Burrows-Wheeler Transform method developed by Mike Burrows and David Wheeler.
- rzip - Open source utility for Unix, similar in functionality to gzip or bzip2, but able to take advantage of long distance redundancies in files, which can sometimes produce better compression.
- P7ZIP - A command line port of the 7zip utility to Unix, Mac OS X and BeOS.
- StuffIt - Create and access email attachments and downloads, protect data, and transfer files.
- 1StepUnzip - Easy to use shareware tool for unzipping and installing your downloaded Internet files.
- 7-Zip - Open source Windows utility for manipulating archives. Formats 7z, ZIP, GZIP, BZIP2 and TAR are supported fully, other formats can be unpacked.
- Windows Shareware@ (32)
- Mac OS@ (9)
- Freeware@ (24)