Zlib

Zlib 1.2.11

A compression library

The Zlib library is a general purpose data compression library compatible with the gzip format. The code is thread safe, assuming that the standard librar y functions used are thread safe, such as memory allocation routines. It provides in-memory compression and decompression functions, including integrity checks of the uncompressed data.

Zlib 1.2.11 details

Author:
License: Freeware
Price: FREE
Released:
File size: 748 kB
Downloads: 78
Keywords: compression libary, decompression library, compression component, compression, decompression, library
Author URL: http://www.zlib.net/
Zlib screenshot
ZlibComponents & LibrariesWindows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64

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Windows 10

x32

Windows 10

x64

Zlib for Windows 10 - Full description

Zlib 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 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 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.

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