Open Source Archiving Software

Library and command line tools for XZ and LZMA compressed files

LZ4 is lossless compression algorithm, providing compression speed > 500 MB/s per core (>0.15 Bytes/cycle). It features an extremely fast decoder, with speed in multiple GB/s per core (~1 Byte/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. LZ4 library is provided as open-source software using a BSD license. This benchmark simulates simple "static content transfer" scenario such as OS Kernel compression or video game's static assets (text/images/tables/scripts/etc) which loading from Flash Memory / HDD / SSD. In this case, compression time is completely ignored. Because only content developers compress the data at once and usually they don't care about its computational cost. But they always care end user's experience a.k.a. "loading time" and bandwidth. Please pay attention to "LZ4HC -9" which is quite faster than other methods.

Zstandard is a fast compression algorithm, providing high compression ratios. It also offers a special mode for small data, called dictionary compression. The reference library offers a very wide range of speed / compression trade-off, and is backed by an extremely fast decoder (see benchmarks below). Zstandard library is provided as open source software using a BSD license. Its format is stable and published as IETF RFC 8478. The negative compression levels, specified with --fast=#, offer faster compression and decompression speed in exchange for some loss in compression ratio compared to level 1, as seen in the table above. Zstd can trade compression speed for stronger compression ratios. It is configurable by small increment. Decompression speed is preserved and remain roughly the same at all settings, a property shared by most LZ compression algorithms, such as zlib or lzma.

pngcrush and other tools for manipulating PNG (Portable Network Graphics) and MNG (Multiple-image Network Graphics) files.

Remote Subversion repository dump

uCON64 is a tool to backup all kinds of video games. It supports almost every available backup unit for cartridge-based consoles and performs many other tasks like ROM hacking.

Draco is an open-source library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics. Learn about compressing and viewing 3D models with Draco, and about different compression models and their effects. 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.

Abbrevia is a compression toolkit for Delphi, C++Builder, Kylix, and Free Pascal. It supports compressing and decompressing PKZIP, Microsoft CAB, tar, gzip, and bzip2 archives, and can create self-extracting executables. On Windows it also provides Delphi wrappers for the LZMA, Bzip2, and WavPack SDKs, and PPMd decompression. Abbrevia also has several visual controls that simplify displaying and manipulating archives, including treeview and listview components.

It supports files and folders multi-compression (UPX, ZIP, 7Z) and archives extraction (several formats). It includes an intelligent UPX compression mode, self-extracting archive creation, encryption/decryption, external compressors and much more.

Native (JNI) cross-platform library to extract (password protected, multi-part) 7z Zip Rar Tar Split Lzma Iso HFS GZip Cpio BZip2 Z Arj Chm Lhz Cab Nsis Deb Rpm Wim Udf archives and create 7z, Zip, Tar, GZip & BZip2 from Java.

JDIFF is a program that outputs the differences between two binary files, either in binary format or in human readable format (detailed or summarized) and then allows to reconstruct the second file from the first one and the diff-file.

cd2iso is a small command line tool for creating an ISO-9660 image file of a CD-ROM or DVD-ROM. Perfect for taking backup of your CD and DVD collection.

m23 is a free software distribution system (license: GPL), that installs (via network, starting with partitioning and formatting) and administrates (updates, adds / removes software, adds / removes scripts) clients with Debian, (X/K)Ubuntu and LinuxMint. It is used for deployment of Linux clients in schools, institutions and enterprises. The m23 server is controlled via a web interface. A new m23 client can be installed easily in only three steps. Group functions and mass installation tools make managing a vast number of clients comfortable. The integration of existing clients (with .deb-based distributions) into the system is possible, too. Client backup and server backup are included to avoid data loss. With the integrated virtualisation software, m23 can create and manage virtual m23 clients, that run on real m23 clients or the m23 server. Scripts and software packages (for installation on clients) can be created directly from the m23 web interface.

This utility converts Motorola S-record files (namely .S19 files) to binary files and vice-versa. It has several useful features that allow full manipulation of record addressing and output file size.

Tool for managing Nintendo DS ROMs, Includes auto rename, trim and zip utility. Process multiple ROMS with a single click.

Patches xmms for on the fly recoding id3 tags, m3u playlists, and file names from one encoding to another. Support ID3 tag editing, playlist sorting, encoding autodetection. Configuration available under encodings page of standard xmms preferences.

The aim of the project is to develop an open source iSCSI target with professional features, works well in enterprise environment under real workload, and is scalable and versatile enough to meet the challenge of future storage needs and developements.

List all apps on android device that don't allow adb backup

Mac binary format converter. Supported binary formats include: native, datafork+resourcefork file, applesingle, macbinary, services for macintosh, etc.

Command line tool written in Java, that automaticly unpacks (password protected) RAR-Archives or multi-part RARs, if all belonging files are complete. It is designed to do unrar jobs on Linux-based NAS-Devices when downloading from Rapidshare & co.

a Java utility for comparing the contents of any two zip files. It can also be used to compare EAR files, WAR files, or JAR files.

This application is intended to make a diff files for the backup purposes. Imagine that you have a VM with 10GB vmdk file that you backup every day. So, you need to keep 100GB (let say 60GB with compression) for 10 days. However from those 10GB file only ~500MB is daily changed and you can shrink your backup storage to 15GB, if you keep only the daily difference. The BinDiff makes this job for you. Initially you make a full copy of vmfk file (let's say every month or two). That time you also make a hash file to track the block changes. You keep the hash file (which is small enough) and every day make a differential file from vmdk file that you keep on the backup storage. Profit! For the recovery BinDiff merges the latest available diff file with the initial vmdk file and gives you the full vmdk on that day. You can also make/check md5 checksums if necessary. Note that BinDiff tracks 4kB block changes only (VMware vmdk does it and HyperV I guess too).

EVACopy is a backup program that has versioning and easy restoration in mind. It's light-weight, portable (no setup required, no dependencies, no repository, no database), easily deployed to multiple workstations, simple to use. ideal for home users too

A project to provide change control for OpenDocument files via subversion under Unix. Can check in internal changes in files and allows users to recover any previous version, view logs and compare with older versions.

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