Snappy Java - Snappy compressor/decompressor for Java

•    Java

snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. It does fast compression/decompression around 200~400MB/sec, Less memory usage. SnappyOutputStream uses only 32KB+ in default, Compression/decompression of Java primitive arrays (float[], double[], int[], short[], long[], etc.) and lot more.

zlib.js - compact zlib, deflate, inflate, zip library in JavaScript

•    Javascript

compact zlib, deflate, inflate, zip library in JavaScript

7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard

•    C

Zstandard v1.3.7 is a real-time compression algorithm, providing high compression ratios. It offers a very wide range of compression / speed trade-off, while being backed by a very fast decoder. Brotli v.1.0.7 is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

7-Zip - File archiver with a high compression ratio

•    C

7-Zip is a file archiver with the high compression ratio. The program supports 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM, ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR, Z.

LZF Compressor- High-performance, streaming/chunking Java LZF codec, compatible with standard C LZF package

•    Java

LZF-compress is a Java library for encoding and decoding data in LZF format, written by Tatu Saloranta. LZF alfgorithm itself is optimized for speed, with somewhat more modest compression. Compared to the standard Deflate (algorithm gzip uses) LZF can be 5-6 times as fast to compress, and twice as fast to decompress. Compression rate is lower since no Huffman-encoding is used after lempel-ziv substring elimintation.

pako - high speed zlib port to javascript, works in browser & node.js

•    Javascript

zlib's test is partially affected by marshalling (that make sense for inflate only). You can change deflate level to 0 in benchmark source, to investigate details. For deflate level 6 results can be considered as correct.

PeaZip - Cross-platform file and archive manager

•    Pascal

PeaZip is a free file archiver utility and rar extractor for Windows and Linux, work with 150+ archive types and variants (7z, ace, arc, bz2, cab, gz, iso, paq, pea, rar, tar, wim, zip, zipx...), handle spanned archives and support multiple archive encryption standards. The project aims to provide a cross-platform, portable, GUI frontend for multiple Open Source technologies (7-Zip, FreeArc, PAQ, PEA, UPX) focused on file and archive management, and security

compress - Optimized compression packages

•    Go

This package is based on an optimized Deflate function, which is used by gzip/zip/zlib packages. It offers slightly better compression at lower compression settings, and up to 3x faster encoding at highest compression level.

zlib-ng - zlib replacement with optimizations for "next generation" systems.

•    C

The motivation for this fork was due to seeing several 3rd party contributions containing new optimizations not getting implemented into the official zlib repository. Mark Adler has been maintaining zlib for a very long time, and he has done a great job and hopefully he will continue for a long time yet. The idea of zlib-ng is not to replace zlib, but to co-exist as a drop-in replacement with a lower threshold for code change.

Snappy - Port of Snappy to Java

•    Java

This is a rewrite (port) of Snappy writen in pure Java. This compression code produces a byte-for-byte exact copy of the output created by the original C++ code, and extremely fast.

ZipStorer - A Pure C# Class to Store Files in Zip

•    DotNet

Small C# class to store and extract uncompressed and deflated files in new or existing Zip files, without any external library. Works with .net 2.0 and up, and Compact Framework.

ZipStream-PHP - Fork of pablotron's zip streaming library.

•    PHP

You can also add comments, modify file timestamps, and customize (or disable) the HTTP headers. It is also possible to specify the storage method when adding files, the current default storage method is 'deflate' i.e files are stored with Compression mode 0x08. See the class file for details. Please take a look at the CONTRIBUTOR-README.md File.

zopfli - Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression

•    C++

Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.

miniz - miniz: Single C source file zlib-replacement library, originally from code

•    C

Miniz is a lossless, high performance data compression library in a single source file that implements the zlib (RFC 1950) and Deflate (RFC 1951) compressed data format specification standards. It supports the most commonly used functions exported by the zlib library, but is a completely independent implementation so zlib's licensing requirements do not apply. Miniz also contains simple to use functions for writing .PNG format image files and reading/writing/appending .ZIP format archives. Miniz's compression speed has been tuned to be comparable to zlib's, and it also has a specialized real-time compressor function designed to compare well against fastlz/minilzo. Please use the files from the releases page in your projects. Do not use the git checkout directly! The different source and header files are amalgamated into one miniz.c/miniz.h pair in a build step (amalgamate.sh). Include miniz.c and miniz.h in your project to use Miniz.

HTTP Compression Library for Heavy Load Web Server

Deflater is a HTTP Compression Library, supporting Deflate (RFC 1950, RFC 1951) and GZip (RFC 1952). It is designed to encode and compress HTML content at once.

js-deflate - RFC 1951 raw deflate/inflate for JavaScript

•    Javascript

See demo for usage.

DeflateLib

The implementation of RFC 1951 -- DEFLATE Compressed Data Format Specification version 1.3 (also RFC 1950 ZLIB and 1952 GZIP). It's written in managed C#. The project has basic compression algorithm implementation as it's described in the RFC.

oppressor - streaming http compression response negotiator

•    Javascript

Return a duplex stream that will be compressed with gzip, deflate, or no compression depending on the accept-encoding headers sent.oppressor will emulate calls to http.ServerResponse methods like writeHead() so that modules like filed that expect to be piped directly to the response object will work.

zlib - A Massively Spiffy Yet Delicately Unobtrusive Compression Library

•    C

zlib is a general purpose data compression library. All the code is thread safe. It is ported to different programming languages like Java, CSharp, Python and Perl.

JZlib - Zlib in Java

JZlib is a re-implementation of zlib in pure Java. JZlib can inflate data, which is deflated by zlib and JZlib can generate deflated data, which is acceptable and is inflated by zlib. JZlib supports all compression level and all flushing mode in zlib.