Data compression reduces the size of a file, or groups of files of data by eliminating unnecessary information, such as blanks and redundant data.
The idea of reducing the size is to save money on transmitting or storing the data. The file or program which has been compressed must be "decompressed", i.e. brought back to normal before use.
WinZip is a windows data compression utility that focuses on the Zip data compression format for windows users. It took the lead from PKZIP when windows was introduced. http://www.winzip.com
Data compression utility for the OS/2 family of operating systems. Extensive drag and drop implementation and speech enabled utility that deals with "zip" and OS/2 "packed" archive formats. http://www.pillarsoft.net/
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. http://www.rarsoft.net/
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. http://www.faqs.org/faqs/compression-faq/
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. http://www.quikcat.com
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. http://www.camdevelopment.com/cuz.htm
Takes all the ZIP archives from one directory and extracts them to another one, allows you to handle more than one ZIP archive at once. Free open-source software for Win32. http://www.ractive.ch/gpl/zipalot.html
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) http://www.filzip.com/
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. http://www.radgametools.com/smkmain.htm
Relative new though already used on many sites. When compared to WinZip the most important advantage of WinAce is better compression. http://www.winace.com
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. http://www.notes-compression.com/
Creates compressed TomeRaider files, allows unsurpassed text compression (45%-60%), plus TR files are portable between platforms of Windows, PDA (palm, pocket PC or psion) http://www.tomeraidit.com/
ZIP and UNZIP Management complete with built-in Wizards to walk you through creating ZIP and EXE (self extracting) archives. http://www.avantrix.com/exzip.htm
Zipsearch is shareware to search compressed zip archives for files inside archives. The program finds text strings within the files for viewing and changes. http://www.filehunter.com/ZipsearchDetails.htm
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. http://www.coffeecup.com/zip-wizard/
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. http://www.maximumcompression.com/
A compression tool under GPL. Zzip compression algorithm is mainly based on the Burrows-Wheeler Transform method developped by Mike Burrows and David Wheeler. http://debin.org/zzip/
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). http://www.hifn.com/
