Showing 97 open source projects for "linux operating system"

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  • 1
    Zstandard

    Zstandard

    Zstandard - Fast real-time compression algorithm

    Zstandard is a fast compression algorithm, providing high compression ratios. It also offers a special mode for small data, called dictionary compression. The reference library offers a very wide range of speed / compression trade-off, and is backed by an extremely fast decoder (see benchmarks below). Zstandard library is provided as open source software using a BSD license. Its format is stable and published as IETF RFC 8478. The negative compression levels, specified with --fast=#, offer...
    Downloads: 105 This Week
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  • 2
    Brotli

    Brotli

    Brotli compression format

    Version 1.0.9 contains a fix to "integer overflow" problem. This happens when "one-shot" decoding API is used (or input chunk for streaming API is not limited), input size (chunk size) is larger than 2GiB, and input contains uncompressed blocks. After the overflow happens, memcpy is invoked with a gigantic num value, that will likely cause the crash. Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm,...
    Downloads: 30 This Week
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  • 3
    Nikkho

    Nikkho

    Javier Gutiérrez Chamorro (Guti) Open source projects

    Javier Gutiérrez Chamorro (Guti) Open source projects Author's website: https://www.javiergutierrezchamorro.com
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    Downloads: 931 This Week
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  • 4
    Library and command line tools for XZ and LZMA compressed files
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    Downloads: 78,606 This Week
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  • 5
    7-Zip

    7-Zip

    A free file archiver for extremely high compression

    7-Zip is a file archiver with a high compression ratio. 7-Zip works in Windows 11 / 10 / 8 / 7 / Vista / XP / 2022 / 2019 / 2016 / 2012 / 2008 / 2003 / 2000. You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. And there is command line version for Linux and macOS. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license with GNU LGPL + unRAR restrictions. Check the license...
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    Downloads: 13,477 This Week
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  • 6

    OptiPNG

    Advanced PNG optimization program

    OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.
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    Downloads: 824 This Week
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  • 7

    littleutils

    Various small and useful command-line utilities

    The littleutils include duplicate file finders (repeats, repeats.pl, repeats.py), image optimizers (opt-jpg, opt-png, opt-gif, recomp-jpg), file rename tools (lowercase, uppercase, pren), archive recompressors (to-gzip, to-bzip2, to-bzip3, to-7zip, to-lzma, to-lzip, to-xz), a tempfile utility (tempname), file property tools (filedate, filemode, filenode, fileown, filesize, and lrealpath), and others. See the README file for more details.
    Downloads: 2 This Week
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  • 8
    LAME (Lame Aint an MP3 Encoder)

    LAME (Lame Aint an MP3 Encoder)

    A high quality MP3 encoder

    LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to improve the psycho acoustics, quality and speed of MP3 encoding. Note: we provide source code only!
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    Downloads: 23,227 This Week
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  • 9
    Major looseless compression algorithms library and documentation. First project: Arithmetic, Huffman, LZ77, LZ78, LZW, RLE. Second project reimplements Deflate. Documentation explains major Entropy Compression Methods.
    Downloads: 0 This Week
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  • 10
    NOTE: Moved to https://github.com/vapier/ncompress maintaining the public domain project ncompress
    Downloads: 6 This Week
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  • 11
    clzw

    clzw

    Implementation of LZW compression algorithm in C

    Simple, fast implementation of LZW (Lempel–Ziv–Welch) data compression algorithm in C. - Console encoder/decoder tools - OS independent - Could be used in embedded projects - Works with raw code-stream LZW features: - Hardcoded dictionary size - Variable code size - Code search is performed by hash table and embedded in dictionary linked lists (encoder) - No dynamic memory allocation
    Downloads: 1 This Week
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  • 12
    The jbig2dec project is no longer hosted here. Please see: https://www.ghostscript.com JBIG2 is a compression format for lossless and lossy encoding of scanned monochrome documents at moderately high resolution. It is very efficient in that domain, claiming 100:1 compression. jbig2dec is a decoder-only implementation of the format.
    Downloads: 1 This Week
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  • 13
    A portable version of the ARJ archiver, available for a growing number of DOS-like and UNIX-like platforms on a variety of architectures.
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    Downloads: 83 This Week
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  • 14
    Moved to GitHub.com/gdraheim/zziplib/ The ZZIPlib provides read access on ZIP-archives. The library uses only the patent-free compression-algorithms supported by Zlib. It provides functions that transparently access files being either real files or zipped files, both with the same filepath
    Downloads: 5 This Week
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  • 15
    pngcrush and other tools for manipulating PNG (Portable Network Graphics) and MNG (Multiple-image Network Graphics) files.
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    Downloads: 247 This Week
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  • 16
    FLAC is a free lossless compressed audio format which supports streaming and archival. The FLAC project maintains the format and provides a reference encoder/decoder and input plugins for several popular audio players.
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    Downloads: 210 This Week
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  • 17
    TTA Lossless Audio Codec
    Lossless compressor for multichannel 8,16 and 24 bits audio data, with the ability of password data protection. Being 'lossless' means that no data/quality is lost in the compression - when uncompressed, the data will be identical to the original.
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    Downloads: 117 This Week
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  • 18

    Binomial Compression

    lossless data compressor

    A lossless data compressor. It is a proof of concept for some ideas I had.
    Downloads: 0 This Week
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  • 19

    Text Zip

    This software zips and unzips a text file

    This software zips and unzips a .txt file, using the Huffman encoding algorithm and the list and tree data structures. The result files are named zippedFile.txt and unzippedFile.txt and can be found at the same directory as the Text Zip executable file.
    Downloads: 1 This Week
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  • 20

    fqzcomp

    A fastq compression program

    Fqzcomp is a basic fastq compressor, designed primarily for high performance. Despite that it is comparable to bzip2 for compression levels.
    Downloads: 1 This Week
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  • 21
    hufc is a utility to compress or expand files using Huffman coding. It can use a 16-bit CRC or the IP checksum for error detection.
    Downloads: 0 This Week
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  • 22
    Gemc

    Gemc

    Prepare your CD images (BIN,CDI,NRG,CCD or similar) for compression

    Gemc lets you prepare CD image files (such as BIN, CDI, NRG, CCD, or similar) so that they'll compress far better in programs such as WinRAR. HERE`S HOW TO USE IT: Run the CD image file (i.e. filename.bin) through GEMC to create an ECM file (i.e. filename.bin.ecm). Compress the ECM file (i.e. filename.bin.ecm) using your favorite compression program (i.e. 7Z,RAR,ZIP..). Back up, transmit via Internet, or whatever you normally do with CD images! When you want to burn the CD again,...
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    Downloads: 46 This Week
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  • 23
    The linux e2compr package consists of a set of patches and utilities to provide transparent compression and decompression in the second extended (ext2) filesystem.
    Downloads: 0 This Week
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  • 24
    liblzg is a minimal implementation of an LZ77 class compression library. The main characteristic of the library is that the decoding routine is very simple, fast and requires no memory.
    Downloads: 0 This Week
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  • 25
    THIS PROJECT HAS BEEN MOVED TO GITHUB: http://github.com/drichardson/huffman
    Downloads: 0 This Week
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