Crunch - Insane(ly slow but wicked good) PNG image optimization

•    Python

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Crunch is a tool for lossy PNG image file optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE compression algorithm encoding using the pngquant and zopflipng PNG optimization tools. This approach leads to a significant file size gain relative to lossless approaches at the expense of a relatively modest decrease in image quality (see example images below). Historical benchmarks with the files included in Cédric Louvrier's PNG Test Corpus versus other commonly used PNG optimization software are available in BENCHMARKS.md.

png png-compression compression image-quality image-processing images image image-compression pngquant zopflipng lossy lossy-compression

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

•    C

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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.

brotli lizard lz4 lz5 zstd zstandard 7-zip compression archiver 7z

7-Zip - File archiver with a high compression ratio

•    C

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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.

compression deflate zlib zip decompression data-compression utility

Snappy Java - Snappy compressor/decompressor for Java

•    Java

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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.

compression decompression zip deflate inflate

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

•    Java

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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.

compression decompression zip deflate lzf lzf-compress

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

•    C

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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.

compress - Optimized compression packages

•    Go

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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.

PeaZip - Cross-platform file and archive manager

•    Pascal

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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

compression deflate zlib zip decompression data-compression utility

Snappy - Port of Snappy to Java

•    Java

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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.

compression decompression zip deflate snappy

HTTP Compression Library for Heavy Load Web Server

•    

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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.

deflate gzip html-compression http-compression zlib

Leanify - lightweight lossless file minifier/optimizer

•    C

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Leanify is a lightweight lossless file minifier/optimizer. It removes unnecessary data (debug information, comments, metadata, etc.) and recompress the file to reduce file size. It will not reduce image quality at all. I'm not respossible for any consequence of using Leanify.

recompress lossless minifier optimizer minify compression zopfli mozjpeg png jpeg zip svg ico xml tar epub fb2 data-uri gzip swf

compression - Node.js compression middleware

•    Javascript

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Node.js compression middleware. Returns the compression middleware using the given options. The middleware will attempt to compress response bodies for all request that traverse through the middleware, based on the given options.

compression nodejs expressjs middleware gzip deflate

lzfse - LZFSE compression library and command line tool

•    C

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This is a reference C implementation of the LZFSE compressor introduced in the Compression library with OS X 10.11 and iOS 9. LZFSE is a Lempel-Ziv style data compression algorithm using Finite State Entropy coding. It targets similar compression rates at higher compression and decompression speed compared to deflate using zlib.

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

•    DotNet

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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.

zip compact-framework compression deflate deflatestream

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

•    PHP

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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.

zipstream-php streaming-zip zip stream stream-http

JSZip - Create, read and edit .zip files with Javascript

•    Javascript

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A library for creating, reading and editing .zip files with JavaScript, with a lovely and simple API.

zip deflate inflate compression

Flyimg - Microservice to resize and crop images on the fly

•    PHP

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Image resizing, cropping and compression on the fly with the impressive MozJPEG compression algorithm. One Docker container to build your own Cloudinary-like service.You pass the image URL and a set of keys with options, like size or compression. Flyimg will fetch the image, convert it, store it, cache it and serve it. The next time the request comes, it will serve the cached version.

image image-processing resize-images crop-image docker jpeg png webp gif compression-algorithm flysystem microservice mozjpeg imagemagick compression crop face-detection image-api image-service

WXImageCompress - Image size quality compression, very close to WeChat picture compression strategy

•    Swift

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Image size quality compression, very close to WeChat picture compression strategy

ios-image ios-image-compress wechat-image image-compression image-compressor image-composer

brotli - Brotli compression format

•    C

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Brotli 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.The specification of the Brotli Compressed Data Format is defined in RFC 7932.

ngx_brotli - NGINX module for Brotli compression

•    C

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Brotli 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.Both Brotli library and nginx module are under active development.