Showing 247 open source projects for "java open source"

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  • 1
    LZ4

    LZ4

    Extremely fast compression algorithm

    ...It features an extremely fast decoder, with speed in multiple GB/s per core (~1 Byte/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. LZ4 library is provided as open-source software using a BSD license. This benchmark simulates simple "static content transfer" scenario such as OS Kernel compression or video game's static assets (text/images/tables/scripts/etc) which loading from Flash Memory / HDD / SSD. In this case, compression time is completely ignored. Because only content developers compress the data at once and usually they don't care about its computational cost. ...
    Downloads: 307 This Week
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  • 2
    Zstandard

    Zstandard

    Zstandard - Fast real-time compression algorithm

    ...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 faster compression and decompression speed in exchange for some loss in compression ratio compared to level 1, as seen in the table above. Zstd can trade compression speed for stronger compression ratios. ...
    Downloads: 100 This Week
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  • 3
    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: 50 This Week
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  • 4
    Zippy

    Zippy

    Pure Nim implementation of deflate, zlib, gzip and zip

    Zippy is a pure Nim implementation of DEFLATE, ZLIB, GZIP, and ZIP data compression formats, aiming to be small, performant, and dependency-free.
    Downloads: 4 This Week
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  • 5
    compression

    compression

    Node.js compression middleware

    compression is a Node.js middleware for Express applications that enables HTTP response compression, improving the performance of web applications by reducing the size of the response body.
    Downloads: 0 This Week
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  • 6
    UglifyJS 3

    UglifyJS 3

    JavaScript parser, mangler, compressor, beautifier toolkit

    UglifyJS is a JavaScript compressor/minifier written in JavaScript. It also contains tools that allow one to automate working with JavaScript code. A parser which produces an abstract syntax tree (AST) from JavaScript code. A code generator which outputs JavaScript code from an AST, also providing the option to get a source map. A compressor (optimizer). it uses the transformer API to optimize an AST into a smaller one. A mangler, reduce names of local variables to (usually) single-letters....
    Downloads: 0 This Week
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  • 7
    Snappy

    Snappy

    A fast compressor/decompressor

    Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger. Snappy is intended to be fast. On a single core of a Core i7 processor in 64-bit mode, it compresses at...
    Downloads: 0 This Week
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  • 8
    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: 9,735 This Week
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  • 9
    Areca Backup (fork)

    Areca Backup (fork)

    Free open source multiplatform backup solution.

    This independent development (fork) of Areca Backup attempts to extend its lifespan by fixing bugs and adding some new features while keeping its simplicity. Areca was originally developed by Olivier PETRUCCI (aventin): https://sourceforge.net/projects/areca/
    Downloads: 86 This Week
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  • 10
    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: 1,289 This Week
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  • 11

    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: 790 This Week
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  • 12
    PeaZip

    PeaZip

    Free Zip software and Rar extractor

    PeaZip is a free archiver tool. The application provides an unified, natively portable, cross-platform file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX. Create: 7Z, ARC, Brotl, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script.
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    Downloads: 1,612 This Week
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  • 13
    NanaZip

    NanaZip

    The 7-Zip derivative intended for the modern Windows experience

    NanaZip is an open source file archiver intended for the modern Windows experience, forked from the source code of well-known open source file archiver 7-Zip.
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    Downloads: 1,015 This Week
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  • 14
    FractalImageCompression

    FractalImageCompression

    Java Fractal Image Compression based on Delaunay triangulation

    Implementation of the algorithm of the paper: "Fractal image compression based on Delaunay triangulation and vector quantization" It is a Fractal compression algorithm, based on relationships between regions of the image (in this case triangles), rather than in explicitly the pixel values themselves. Video...
    Downloads: 3 This Week
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  • 15
    Zip-Ada

    Zip-Ada

    A standalone, portable Ada library for .zip archives

    Zip-Ada is a library for .zip archives. Full sources are in Ada and are unconditionally portable. Input and output can be any stream (file, buffer,...) for archive creation as well as data extraction. Task safe and endian-neutral. More information on: http://unzip-ada.sf.net Alire crate: https://alire.ada.dev/crates/zipada Mirror: https://github.com/zertovitch/zip-ada/
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    Downloads: 34 This Week
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  • 16
    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: 18,892 This Week
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  • 17
    zpaqfranz

    zpaqfranz

    Zpaq compatible archiver for Win, Linux, Free/OpenBSD, Solaris & MacOS

    The Ultimate Archiver: zpaq fork with deduplication & versioning Forget pruning! Get forever storage of your files with thousands of versions. Far more efficient than Time Machine or ZFS snapshots - perfect for VM backups and permanent archiving, effortlessly handling TBs and millions of files. Optimized for cloud/NAS/USB with ultra-low bandwidth, military-grade encryption, and 1GB/s+ speeds on modern hardware. Why Choose zpaqfranz? ✓ Complete: Single/multi-file storage...
    Downloads: 51 This Week
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  • 18
    AZip

    AZip

    AZip - A portable Zip Archive Manager

    AZip is a free Zip Archive Manager with unique features such as: built-in content Search, smart archive Update, archive Recompression. The goal is to keep the user interface as simple as possible and bother the user the least possible with options or useless gadgets. More details and screenshots on the AZip Web site: http://azip.sf.net Alire crate: https://alire.ada.dev/crates/azip Mirror: https://github.com/zertovitch/azip
    Downloads: 9 This Week
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  • 19
    g3fc

    g3fc

    A modern, fast, and secure file archiver with built-in data resilience

    ...Its unique footer design allows for instant file indexing and searching, even in massive archives, eliminating the slow scans required by formats like TAR. G3FC is built for developers and power users, with native, open-source implementations available in Rust, Go, C#, and Python for true cross-platform performance.
    Downloads: 2 This Week
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  • 20
    Albatros
    Win32 and Win64 DLL to compress files in the standard Gzip format and also the new Gzip2, this format can compress files as large as 9.223.372.036 gigabytes and has also MD5 the integrity check, now also SHA512 too, now with support to multi-threads
    Downloads: 0 This Week
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  • 21

    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: 1 This Week
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  • 22
    BWTC32Key

    BWTC32Key

    A file compressor with AES256CTR and Base32768 binary-to-text encoding

    BWTC32Key is a program I wrote that compresses data, then optionally encrypts it, and then outputs a Base32768 representation as the final output
    Downloads: 0 This Week
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  • 23
    litc

    litc

    Litc - light in band text compressor

    A very simple dictionary based text compressor. Created to shorten single line UTF8 strings; it tries to compress them quickly with a simple interface that can be used as a drop in replacement for Encoding.UTF8.GetBytes(value) and Encoding.UTF8.GetString(packed). The public Litc API are in fact: byte[] packed = Litc.GetBytes(value); string unpacked = Litc.GetString(packed);
    Downloads: 0 This Week
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  • 24
    NTK Ultra-Compression

    NTK Ultra-Compression

    Logiciel de compression de fichiers maximal indépendant du temps.

    Le logiciel NTK Ultra-Compression répond à une problématique essentielle de l’ère numérique : comment réduire la taille des données à leur minimum absolu sans compromis sur leur intégrité, tout en s’affranchissant des contraintes temporelles ? Dans un monde où les volumes de données explosent et où les solutions actuelles de compression restent limitées par des compromis entre rapidité, efficacité et complexité, nous proposons une approche disruptive. Les solutions actuelles, telles que...
    Downloads: 0 This Week
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  • 25
    dm-commander

    dm-commander

    DM-commander is a two-pane file and archive manager for Windows.

    DM-commander is a fast and powerfull two-pane file and archive manager for Windows.
    Downloads: 0 This Week
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