Freeware 26
Mac OS 11
Windows Shareware 42
Wavelet Based 9
| | Compression - Algorithms, Computers 78
Compression - Data Formats, Computers 4
Software - Products and Tools, Digital Video, Multimedia, Computers 62
Compression - Components, COM, Component Frameworks, Programming, Computers 9
 Archive Comparison TestArchive Comparison Test
 A set of benchmarks designed to show the state of the art in lossless data compression, by Jeff Gilchrist.
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Automatic File Archiver by JSPayneAutomatic File Archiver by JSPayne
 Does automatic archiving and backup of recently modified.
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BitJazz Inc.BitJazz Inc.
 Lossless compression for photoquality images. Cross-platform. SDK. Free reader.
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CAM Development - CAM UnZipCAM 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.
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CoffeeCup Free Zip WizardCoffeeCup 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.
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ExpressZIPExpressZIP
 ZIP and UNZIP Management complete with built-in Wizards to walk you through creating ZIP and EXE (self extracting) archives.
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FilZip 2000FilZip 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)
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GZIPSite Website CompressionGZIPSite Website Compression
 Tool that can help you make static HTML websites run 50% faster and save 50-80% of the bandwidth.
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Hifn Inc.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).
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Info-ZIPInfo-ZIP
 Ffree, portable compression and extraction utilities for archives compressed in .zip format. Discussion forum, source code, and binaries for several platforms.
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JET-SoftwareJET-Software
 Software house in Germany, with compression products for mainframe, midrange and mini systems.
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Maximum CompressionMaximum 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.
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PeaZipPeaZip
 Presents this free, open source archiver featuring volume spanning, authenticated encryption and compression in several formats. Includes download links, documentation and a support forum.
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QccPackQccPack
 Quantization, Compression, and Coding Library. C source code freely available.
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QuikCAT TechnologiesQuikCAT 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.
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RarissimoRarissimo
 Companion tool for WinRAR for preserving NTFS alternate streams.
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RARRegRARReg
 Offers downloads, support forums and registration for RAR compression tools.
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RAR/WinRAR support siteRAR/WinRAR support site
 A support site for RAR and WinRAR archivers.
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RemoteZip Zip File ManagerRemoteZip Zip File Manager
 A ZIP File Manager that runs on a Web server and has a browser based interface.
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RICAZipRICAZip
 High performance lossless image compression applications, utilities and libraries.
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ROGROG
 German reseller of WinRAR, with information in English and German. Prices in Euros.
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Smacker Video TechnologySmacker 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.
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SolutionSoft Systems, Inc.SolutionSoft Systems, Inc.
 E-Space, compression software for online archiving and disk space management.
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1StepUnzip1StepUnzip
 Easy to use shareware tool for unzipping and installing your downloaded Internet files.
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USENET Compression FAQUSENET 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.
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Video Compression ComponentsVideo Compression Components
 Third-party video compression software components for programmers.
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WarpZipWarpZip
 Data compression utility for the OS/2 family of operating systems. Includes drag and drop implementation and speech enabled utility that deals with "zip" and OS/2 "packed" archive formats.
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WinAceWinAce
 Relative new though already used on many sites. When compared to WinZip the most important advantage of WinAce is better compression.
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Xceed Software Inc.Xceed Software Inc.
 Makers of Zip and Unzip data compression controls for Windows developers that use ActiveX, OCX, VBX and DLLs.
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x-PRESSx-PRESS
 Delivers cross-platform data compression for data transfer, archiving, and retrieval.Part of the CoSORT family of sort and data manipulation solutions.
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ZBit Inc.ZBit Inc.
 COM objects to Zip and Unzip files.
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7-Zip7-Zip
 Open source Windows utility for manipulating archives. Formats 7z, ZIP, GZIP, BZIP2 and TAR are supported fully, other formats can be unpacked.
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ZipALotZipALot
 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.
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ZipMailZipMail
 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.
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ZipsearchZipsearch
 Zipsearch is shareware to search compressed zip archives for files inside archives. The program finds text strings within the files for viewing and changes.
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zlibzlib
 A massively spiffy yet delicately unobtrusive compression library.
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ZzipZzip
 A compression tool under GPL. Zzip compression algorithm is mainly based on the Burrows-Wheeler Transform method developed by Mike Burrows and David Wheeler.
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