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GNU tar

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Claimed by GNU Analyzed 11 months ago

The Tar program provides the ability to create tar archives, as well as various other kinds of manipulation.

26.2K lines of code

3 current contributors

11 months since last commit

3,069 users on Open Hub

Activity Not Available
4.42512
   
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bzip2

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  Analyzed 11 months ago

bzip2 is a freely available, patent free, high-quality data compressor. It typically compresses files to within 10% to 15% of the best available techniques (the PPM family of statistical compressors), whilst being around twice as fast at compression and six times faster at decompression.

9.49K lines of code

0 current contributors

about 3 years since last commit

1,413 users on Open Hub

Activity Not Available
4.47343
   
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gzip

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Claimed by GNU Analyzed 11 months ago

gzip (GNU zip) is a compression utility designed to be a replacement for compress. Its main advantages over compress are much better compression and freedom from patented algorithms. It has been adopted by the GNU project and is now relatively popular on the Internet.

9.82K lines of code

3 current contributors

12 months since last commit

674 users on Open Hub

Activity Not Available
4.35556
   
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FLAC - Free Lossless Audio Codec

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  Analyzed 11 months ago

FLAC is a Free Lossless Audio Codec. The FLAC format supports streaming, seeking, and archival, and gives 25-75% compression on typical CD audio. Input plugins for Winamp and XMMS are also provided.

121K lines of code

18 current contributors

over 1 year since last commit

520 users on Open Hub

Activity Not Available
4.70103
   
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Licenses: BSD-3-Clause, gpl

libpng

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  Analyzed 12 months ago

libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 17 years. libpng is available as ANSI C source code and requires zlib 1.0.4 or later (1.2.3 or 1.1.4 recommended due to potential security vulnerabilities in ... [More] earlier versions). In addition to the main library sources, libpng includes the rpng, rpng2 and wpng demo programs, the pngminus demo program, a subset of Willem van Schaik's PngSuite test images, and Willem's VisualPng demo program. Configure, CMake, Visualc projects, and various makefiles are included for building libpng. Libpng is under the libpng license. [Less]

465K lines of code

0 current contributors

almost 2 years since last commit

349 users on Open Hub

Activity Not Available
4.26316
   
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libjpeg

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  No analysis available

A widely used free library for JPEG image compression.

0 lines of code

0 current contributors

0 since last commit

223 users on Open Hub

Activity Not Available
4.17241
   
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Mostly written in language not available
Licenses: IJG

zlib

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  Analyzed 11 months ago

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 ... [More] 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. [Less]

52.1K lines of code

0 current contributors

over 1 year since last commit

162 users on Open Hub

Activity Not Available
4.25
   
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YUI Compressor

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Claimed by Yahoo! Inc. Analyzed 11 months ago

The YUI Compressor is JavaScript minifier designed to be 100% safe and yield a higher compression ratio than most other tools. Tests on the YUI Library have shown savings of over 20% compared to JSMin (becoming 10% after HTTP compression). Starting with version 2.0, the YUI Compressor is also able ... [More] to compress CSS files by using a port of Isaac Schlueter's regular-expression-based CSS minifier [Less]

24.2K lines of code

1 current contributors

over 5 years since last commit

42 users on Open Hub

Activity Not Available
4.5
   
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Speex

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  No analysis available

Speex is an Open Source/Free Software patent-free audio compression format designed for speech. The Speex project provides a free alternative to expensive proprietary speech codecs. Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs.

0 lines of code

2 current contributors

0 since last commit

30 users on Open Hub

Activity Not Available
4.33333
   
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Mostly written in language not available
Licenses: No declared licenses

UPX

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  No analysis available

UPX (the Ultimate Packer for eXecutables) is a free, portable, extendable, high-performance executable packer for several different executable formats. It achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks because ... [More] of in-place decompression. UPX aims to be Commercial Quality Freeware. [Less]

0 lines of code

0 current contributors

0 since last commit

25 users on Open Hub

Activity Not Available
4.33333
   
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Mostly written in language not available
Licenses: gpl