Open Source File Compression Software - Page 2

MicroZip is a powerful file compression and encryption utility for mobile phones which allows you to create and extract compressed archives in multiple formats and encrypt sensitive information with powerful AES-256 encryption. MicroZip can create and extract ZIP,TAR,TGZ,TBZ2 archives and extract many other formats as JAR,GZ,BZ2,TBZ,WAR,BZIP2,GZIP,Z,TAZ,CBZ etc. MicroZip allows you to extract selected files without extracting the whole ZIP archive. MicroZip also supports encrypted ZIP archives with both classic ZIP encryption and AES 256 encryption algorithm.

The ZLib.Ada is a thick binding to the popular compression/decompression library ZLib http://www.gzip.org/zlib/. ZLib.Ada provide Ada style access to the ZLib C library.

Basic Compression Library is a portable library of well known compression algorithms, such as Huffman coding, written in standard ANSI C. It is intended to serve as a set of building blocks for specialized compression algorithms.

Tools for archiving, compressing and processing XML data.

The RLE compression pack is a set of utilities to compress and decompress files using RLE algorithm.

The JPedal JBIG2 Image Decoder is a 100% pure Java image decoder for the JBIG2 file format. The decoder takes the JBIG2 image processing technology developed for the JPedal PDF renderer in 2007 and makes it available as a generic library for more general usage. The JDeli Image Library https://www.idrsolutions.com/jdeli contains a much enhanced and faster version and also provides a complete ImageIO replacement (see https://www.idrsolutions.com/jdeli/imageio-replacement) for Tiff, JPEG, JPEG2000, Png as well as lots of other image formats including Dicom, WMF, PSD, SGI and WebP.

lzop is a file compressor similar to gzip. Its main advantages over gzip are much higher compression and decompression speed, at the cost of some compression ratio. lzop uses the LZO library for compression services.

A new replacement module for python zipfile module, overcoming its current limitations. Some of them include support for: bzip2 (de)compression, removal of files in archive, file-like object API to ZIP archive members, traditional PKWARE encryption, etc.

Atol is a classical dual panel file manager aiming to be portable to both Linux and Windows OS (using C++ and GTK+ toolkit)

CRUSH is a simple LZ77-based file compressor that features an extremely fast decompression.

This is Python module for RAR archive reading. The interface is made as `zipfile` like as possible.

TER implements the CCSDS Recommendation for Image Data Compression (CCSDS 122.0-B-1). TER also adds new features to the Recommendation. TER is designed and programmed with the aim to provide a good basis to test and develop the CCSDS Recommendation.

Compress videos, remove audio, manipulate thumbnails, and make your video compatible with all platforms through this lightweight and efficient library. 100% native code was used, we do not use FFMPEG as it is very slow, bloated and the GNU license is an obstacle for commercial applications. In addition, google chrome uses VP8/VP9, safari uses h264, and most of the time, it is necessary to encode the video in two formats, but not with this library. All video files are encoded in an MP4 container with AAC audio that allows 100% compatibility with safari, mozila, chrome, android and iOS. Works on ANDROID, IOS and desktop (just MacOS for now).

Depack routines for old Atari ST packing programs like Ice, Atomic etc.

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 le format ZIP ou 7z, bien qu’efficaces, atteignent leurs limites en termes de taux de compression et d’efficacité pour les fichiers volumineux ou complexes. Ces outils sont souvent contraints par des compromis entre rapidité d’exécution et efficacité de stockage. Cette approche disruptive s’adresse notamment aux utilisateurs ayant besoin de manipuler des fichiers volumineux, comme les logiciels, les jeux vidéo ou les bases de données, où chaque octet économisé compte.

Softcabq

Simple command-line directory incremental backup tool. Create compressed point-in-time snapshots, adding only new or modified files each time. Uses a file catalog so previous zip volumes are not needed for backup. Archives are automatically time-stamped.

CADI is an implementation of the JPIP standard (JPEG2000 Interactive Protocol - Part 9). CADI includes a JPIP server, a JPIP proxy, and a JPIP Client. CADI is designed and programmed with the aim to provide a flexible framework to test and develop ne

pgn2pgc converts text Portable Game Notation (PGN) chess files into highly compressed Portable Game Coding (PGC) chess files. This is the only implementation of PGC as described in the PGN standard. Code is also useful for writing chess software.

PAT is a complete web application that allow to manage files (basic and advanced functions like compression in gz), ftp, and database all in one. Designed to reproduce a Graphical User Interface (GUI) with drop-down and context menu for easy use

PhpZip is a PHP application which manage compressed archives. PhpZip can archive and extract files and file systems (files + folders). PhpZip support several archive formats (proprietary, GNU TAR, Compressed, ...).

PyramidWorkshop is an image-compression System based upon the scientific work of John Robinson (inventor of BTPC) about image-compression with adaptive linear predictors and is in average more efficient than PNG/JPEG2000.

ebsdiff creates a binary patch file using the bsdiff format. The enhancements to bsdiff are that it stores an MD5 hash of the original file (preventing accidental patching of the wrong file) and can limit the memory it uses while creating the patch file.

G3FC is a modern, high-performance open-source file archiver using Zstd compression. This project delivers a secure and resilient file container format engineered to replace legacy tools. G3FC excels with its technical features: blazing-fast Zstandard compression, strong AES-256-GCM authenticated encryption, and optional Forward Error Correction (FEC) to prevent data corruption. 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.

Minimalist rework of gzip/gunzip with minimal memory requirement (16KB zip / 2KB unzip) and addons : on-the-fly processing of partial input data (no need to bufferize all data), input from and/or output to memory... Demo/test program also provided