Open Source Windows File Compression Software - Page 4

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.

Zeus provides an API for developers to protect with AES Encryption and compress with ZIP application specific data not intended for public access. Zeus, the tool, integrates with Windows Explorer to protect sensitive data.

ZipDB is a program that allows databases to be made easily and efficiently using compressed zip files. An easy-to-use gui is the key feature allowing quick access to all files in the archive, and since the archives are .zip they can always be opened on

Win32 and Win64 DLL to compress, uncompress, delete, test and list standard zip files, full Unicode support added at 06/November/2020, another option with more features about zip capabilities is the Parolin project at http://parolin.sourceforge.net/, if Winrar and 7zip compatability is important Parolin is a better option also statndard AES encryption is included

A very simple file compressor written in Perl. Compresses dirs to self-extractable exe. Uses UHARC and RAR utilities.

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

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

jShrinker is written in Java and can de/compress 7zip*, zip, bzip2, tar, lzma, rar, and gzip formats. It aims to be cross-platform and to provide an easy-to-use interface. It will include these features: batch decompression. *Decompress only

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);

minihuff is a data compression library that enables the creation of a static frequency table to be stored at both ends of a connection. This allows effective compression even for very small pieces of data that maintain similar entropy characteristics.

Based on source from http://zlib.net/pigz/

Tzip is a newly-developed compression application with multiple features. As you know, most of compression applications on the Internet are not totally free. The business operators come up with different ideas to force you to pay, like 30-day use for trial, purchase approval, cracked version and modified version. Here, we promise that Tzip would be TOTALLY and PERMANENTLY FREE. All we want to do is bringing benefits to users and promoting technique communication. We tried our best to complete the software: thousands of times of testing, commissioning and debugging processes, adding features and functions, and designing and redesigning UIs. Finally, Tzip in the current version, with multiple functions, least bugs and excellent performance came out. We will do our best to improve it, complete it, and make it closer to the perfect. If you find any bugs of Tzip, please let us know. We promise to make continuous improvement.

A very simple but effective FastDL Server for Counter Strike that allows your game server clients to download your server content from a HTTP service.

wxWidgets based cross platform 7-Zip File Manager GUI for Windows, Linux and Mac.

.NET wrapper for 7Zip, based on 7-Zip-JBinding, produced with IKVM. Extracts (password protected, multi-part) 7z Zip Rar Tar Split Lzma Iso HFS GZip Cpio BZip2 Z Arj Chm Lhz Cab Nsis Deb Rpm Udf archives. Archive creation/more formats coming soon.

My first try of a GUI with wxWidgets. Now 7zip can do "each file to a seperate archive" from Winrar. Sends commands to the CMD to process through the list, though maybe Admin rights are required. Maybe a Linux-Version later...

AGfUPX is a nice GUI for UPX with many advantages. Selecting a file using drag & drop, shell integration (adding "Open with AGfUPX" option to the context menu of exe/dll files) and redirecting UPX output to a windows dialog box are only few of them.

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

Manage rar files in perl.

BALZ is a command-line file compressor with a high compression ratio and fast decompression.