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DotNetZip Library

DotNetZip is a FAST, FREE class library and toolset for manipulating zip files. Use VB, C# or any .NET language to easily create, extract, or update zip files.

lz4 - Extremely Fast Compression algorithm

LZ4 is lossless compression algorithm, providing compression speed at 400 MB/s per core, scalable with multi-cores CPU. It features an extremely fast decoder, with speed in multiple GB/s per core, typically reaching RAM speed limits on multi-core systems.Speed can be tuned dynamically, selecting an "acceleration" factor which trades compression ratio for more speed up. On the other end, a high compression derivative, LZ4_HC, is also provided, trading CPU time for improved compression ratio. All versions feature the same decompression speed.

Zstandard - Fast real-time compression algorithm

Zstandard 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. It also offers a special mode for small data, called dictionary compression, and can create dictionaries from any sample set.

draco - Draco is a library for compressing and decompressing 3D geometric meshes and point clouds

Draco is a library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics.Draco was designed and built for compression efficiency and speed. The code supports compressing points, connectivity information, texture coordinates, color information, normals, and any other generic attributes associated with geometry. With Draco, applications using 3D graphics can be significantly smaller without compromising visual fidelity. For users, this means apps can now be downloaded faster, 3D graphics in the browser can load quicker, and VR and AR scenes can now be transmitted with a fraction of the bandwidth and rendered quickly.

lepton - Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.

Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.This can be used to archive large photo collections, or to serve images live and save 22% bandwidth.

Lz4 - Extremely Fast Compression algorithm

LZ4 is a very fast lossless compression based on well-known LZ77 (Lempel-Ziv) algorithm, providing compression speed at 300 MB/s per core, scalable with multi-cores CPU. It also features an extremely fast decoder, with speeds up and beyond 1GB/s per core, typically reaching RAM speed limits on multi-core systems.

7-Zip - File archiver with a high compression ratio

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.

zlib - A Massively Spiffy Yet Delicately Unobtrusive Compression Library

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.

PeaZip - Cross-platform file and archive manager

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

digital_video_introduction - A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding)

A gentle introduction to video technology, although it's aimed at software developers / engineers, we want to make it easy for anyone to learn. This idea was born during a mini workshop for newcomers to video technology. The goal is to introduce some digital video concepts with a simple vocabulary, lots of visual elements and practical examples when possible, and make this knowledge available everywhere. Please, feel free to send corrections, suggestions and improve it.

makeself - A self-extracting archiving tool for Unix systems, in 100% shell script.

makeself.sh is a small shell script that generates a self-extractable compressed tar archive from a directory. The resulting file appears as a shell script (many of those have a .run suffix), and can be launched as is. The archive will then uncompress itself to a temporary directory and an optional arbitrary command will be executed (for example an installation script). This is pretty similar to archives generated with WinZip Self-Extractor in the Windows world. Makeself archives also include checksums for integrity self-validation (CRC and/or MD5/SHA256 checksums). The makeself.sh script itself is used only to create the archives from a directory of files. The resultant archive is actually a compressed (using gzip, bzip2, or compress) TAR archive, with a small shell script stub at the beginning. This small stub performs all the steps of extracting the files, running the embedded command, and removing the temporary files when done. All the user has to do to install the software contained in such an archive is to "run" the archive, i.e sh nice-software.run. I recommend using the ".run" (which was introduced by some Makeself archives released by Loki Software) or ".sh" suffix for such archives not to confuse the users, so that they will know they are actually shell scripts (with quite a lot of binary data attached to them though!).

essential-image-optimization - Essential Image Optimization - an eBook

Bring up a terminal and type node --version. Node should respond with a version at or above 0.10.x. If you require Node, go to nodejs.org and click on the big green Install button.

boxing - Android multi-media selector based on MVP mode.

Core version: only contain the core function. UI version: contain UI implements base on core version.

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

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.

CompactGUI - Visual Interface for the Windows 10 Compact Function

CompactGUI is a standalone user interface that makes the Windows 10 compact.exe function easier to use. What is the Windows 10 compact.exe function? It's a commandlet with a collection of new algorithms introduced in Windows 10 that allow you to transparently compress games, programs and other folders with virtually no performance loss.

compression - Node.js compression middleware

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.

cstore_fdw - Columnar store for analytics with Postgres, developed by Citus Data

Cstore_fdw is an open source columnar store extension for PostgreSQL. Columnar stores provide notable benefits for analytics use cases where data is loaded in batches. Cstore_fdw’s columnar nature delivers performance by only reading relevant data from disk, and it may compress data 6x-10x to reduce space requirements for data archival. Cstore_fdw is developed by Citus Data and can be used in combination with Citus, a postgres extension that intelligently distributes your data and queries across many nodes so your database can scale and your queries are fast. If you have any questions about how Citus can help you scale or how to use Citus in combination with cstore_fdw, please let us know.

minify - CSS & JavaScript minifier, in PHP

And it comes with a huge test suite. The object constructor accepts 0, 1 or multiple paths of files, or even complete CSS/JS content, that should be minified. All CSS/JS passed along, will be combined into 1 minified file.

Zip - Swift framework for zipping and unzipping files.

A Swift 4.0 framework for zipping and unzipping files. Simple and quick to use. Built on top of minizip. Import Zip at the top of the Swift file.

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