» Components & libraries
Sections : Programming > Components & libraries
Click to RATE : OneTwoThreeFourFive
Buy Free zlib download

zlib 1.2.8

A Massively Spiffy Yet Delicately Unobtrusive Compression Library



zlib 1.2.8 facilities

Vendor`s Web
Zlib webshot
OSWindows 98, Windows 2000, Windows XP, Windows Vista, Windows 7, Linux, Unix
Limitationsnot specified
Actualizedmore than year ago
LicenseOpen source
Snapshotzlib snapshot
Snapshot of zlib

Use this security logo:

100% SAFE logo

zlib manufacturer description

zlib 1.2.8 is designed to be a free, general-purpose, legally unencumbered -- that is, not covered by any patents -- lossless data-compression library for use on virtually any computer hardware and operating system. The zlib Components & libraries data format is itself portable across platforms. Unlike the LZW compression method used in Unix compress(1) and in the GIF image format, the compression method currently used in zlib essentially never expands the data. (LZW can double or triple the file size in extreme cases.) zlib`s memory footprint is also independent of the input data and can be reduced, if necessary, at some cost in compression. A more precise, technical discussion of both points is available on another page.
zlib download was written by Jean-loup Gailly (compression) and Mark Adler (decompression). Jean-loup is also the primary author/maintainer of gzip(1), the author of the comp.compression FAQ list and the former maintainer of Info-ZIP`s Zip; Mark is also the author of gzip`s and UnZip`s main decompression routines and was the original author of Zip. Not surprisingly, the compression algorithm used in zlib is essentially the same as that in gzip and Zip, namely, the `deflate` method that originated in PKWARE`s PKZIP 2.x.
Mark and Jean-loup can be reached by e-mail at . Please read the FAQ and the manual before asking us for help. We are getting too many questions which already have an answer in the zlib documentation.
Greg, Mark and/or Jean-loup will add some more stuff here when they think of something to add. For now this page is mainly a pointer to zlib itself and to the official zlib and deflate documentation. Note that the specifications both achieved official Internet RFC status in May 1996, and zlib itself was adopted in version 1.1 of the Java Development Kit (JDK), both as a raw class and as a component of the JAR archive format.
The lovely zlib-vise image above was provided courtesy of Bruce Gardner, art director of Dr. Dobb`s Journal. It appears in Mark Nelson`s article in the January 1997 issue (see below).
free download zlib 1.2.8QUICK DOWNLOAD
Free download zlib 1.2.8
Free softwareFREE SOFTWARE

Freeware is computer software that is available for use at no cost or for an optional fee.


zlib video tutorials

Tutorial not found. Let know us about any useful video tutorial.

zlib categories

Compressing File-I, compression library, O Library, zlib

What is new in 1.2.8 changeinfo log

  • Add new inflateGetDictionary() function
  • Fix bug where gzopen() immediately followed by gzclose() would write an empty file instead of an empty gzip stream.
  • Fix bug in gzclose() when gzwrite() runs out of memory

  • Given stickers for zlib & download buttons

    NOTE: move cursor over buttons to get html sources.
    This award means that zlib is an Editor's pick.
    Clean award guarantees that zlib was tested by antivirus program and is absolutely clean, which means it does not contain any form of malware, including computer viruses, adware, trojans, spyware, rootkits, badware and other malicious and unwanted software.
    Report view
    zlib-1.2.3.tar.gz - CLEAN
    Get from
    Get from
    Do you like zlib ? Move mouse cursor over the buttons and just copy one of those links, paste the code you copied right where you want on your blog or website.