data compression link collection


Gzip is a free compression program and format. It uses the same deflate compression engine that Zip-compatible programs use, but does not archive multiple files. Gzip is often used in confunction with tar - tar combines a group of files into a single archive, then gzip compresses the result.

SQUASHFS - A squashed read-only filesystem for Linux

Squashfs is a highly compressed read-only filesystem for Linux (kernel 2.4.x). It uses Gzip compression to compress files, inodes and directories. Inodes in the system are very small and all blocks are packed to minimise data overhead. Block sizes greater than 4K are supported up to a maximum of 64K.

Version 3.2 of squashfs released in January, 2007.

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Posted in July 2nd, 2007


WinGZip is an small freeware utility for working with files produced by gzip utility (usually it’s files with .gz or .tgz extension) and also create such files. Main features include the compressing, decompressing and testing the integrity of gzip files.


Posted in November 24th, 2003


This nice post on the CodeGuru web site does Gzip compression to and from memory, instead of to and from files.

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Posted in July 6th, 2003

Xceed Streaming Compression for .NET

Xceed Streaming Compression for .NET is an efficient and lightweight data compression class library for Microsoft .NET and ASP.NET. It can process any size byte array with ease and provides a true .NET pass-through stream object for automatically compressing or decompressing any .NET stream’s data on the fly. It supports the GZip, Zlib, Deflate and Deflate64 compression formats.

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Posted in June 22nd, 2003

Xceed Zip for .NET Compact Framework

Xceed Zip for .NET Compact Framework is a data compression and all-purpose file manipulation class library for creating mobile apps. It provides flexible zip, gzip and streaming data compression capabilities for compact applications created with Visual Studio .NET 2003. The library includes an innovative and extensible filesystem object model that makes zip files as easy to work with as regular files or folders.

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Posted in June 21st, 2003


UFUP advertises itself as a “decompression utility that handles common Unix package formats such as bzip2, gzip, and tar.”


Posted in May 30th, 2003

Compress Your PHP4 Pages

Gzip encoding is a great way to serve up your web pages, because all modern browsers can render this format. If you’re creating pages with PHP4, it turns out to be really easy to compress your pages this way and get a bit of speedup.


Posted in May 5th, 2003


This product compresses your web pages using the gzip format, which is readable by virtually every modern browser. Compressing the pages this way can do a lot to improve your page loading times.

Version 2.0 is shipping in April, 2003.


Posted in April 23rd, 2003


mgzip is a program that makes use of SMP machines and zlib to use as many processors as you have to quickly compress files into gzip compatible format. mgzip only compresses; gunzip must be used to uncompress the resultant file. I have been able to compress files three times faster than standard gzip on a 4 processor Alpha 4100 using three worker threads. Currently, mgzip will compile and run on Digital Unix 4.0[BD], Linux with a suitable pthread library, and AIX 4.3. Porting to other Unices with pthread libraries should be an easy task, and may be as simple as compiling.


Posted in December 13th, 2002

CGZip, a C++ wrapper for gzip methods

This wrapper class provides you with simple access to the gzip compression methods in zlib. You can compress and decopress to/from memory (including strings) to files. Looks promising. Release 1.1 was released 12/2002, although I can’t tell what if anything has changed.


Posted in December 10th, 2002

IP*Works! Zip Component Suite

IP*Works! Zip allows developers to easily integrate compression and decompression functionality into web or desktop applications using popular file and data compression standards including Zip, Tar, Gzip and Jar standards for compression. All IP*Works! Zip components have been built from the ground up entirely in native .NET and Java code, combining exceptional speed, excellent data compression, and extreme portability across platforms.

The components feature password support, file deletion within an archive, streaming compression and decompression, and more. IP*Works! Zip is currently available as fully-managed 100% C# .NET components, or pure Java beans.


Posted in November 7th, 2002

The Zip, GZip, BZip2 and Tar Implementation For .NET

#ziplib (SharpZipLib, formerly NZipLib) is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET language). The creator of #ziplib put it this way: “I’ve ported the zip library over to C# because I needed gzip/zip compression and I didn’t want to use libzip.dll or something like this. I want all in pure C#.”

Visitor Samuel L. had this to say Extremely useful and well written, well done, great that is open source.

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Posted in September 9th, 2002


GZIPSite is a tool that can compress your web site and allow it to load as much as 50% faster.


Posted in April 4th, 2002

Lesson Eight: Archiving Utilities

This is apparently part of a *NIX manual. Teaches you about our good friends tar, gzip, and bzip2.


Posted in February 27th, 2002

Wikipedia entry: Gzip

The Wikipedia entry for Gzip. Very short with just a couple of links.


Posted in January 27th, 2002

GZIP file format specification version 4.3

The gzip technical specification in HTML, by L. Peter Deutsch. This document is the basis for RFC 1952. Includes sample CRC code

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Posted in August 23rd, 2001


Easy-GZ is a compression tool which allows extremely tight compression and quick decompression. Based on the GZip standard and optimized for the Macintosh platform, an easy-to-use, effective GZ compressor has finally been brought to the Mac OS. Is this software free or not? I’m putting it in the free category - if you find out otherwise please send me an email.


Posted in July 25th, 2001

GZIP File Format

Published in Standards, Gzip

Peter Deutsch’s description of the GZIP file format.

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Posted in February 14th, 2000


The source repository for gzip.

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Posted in November 14th, 1999

Gzip specification in PS format

The gzip technical specification in US size PostScript, by L. Peter Deutsch.

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Posted in November 14th, 1999

Gzip specification in ASCII format

The gzip technical specification in ASCII, by L. Peter Deutsch. This document is the basis for RFC 1952.

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Posted in November 14th, 1999

UUNet FTP Site

This ftp site has copies of Zoo, ARC, gzip, and zip, in some cases for multiple platforms.

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Posted in November 7th, 1999

MacGzip Home Page

Links and information about MacGzip

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Posted in November 7th, 1999

Greenleaf Software

Greenleaf sells ArchiveLib, an archiving library that supports both Zip and a proprietary format


Posted in December 23rd, 1998