201 projects tagged "Compression"

Download Website Updated 17 Jun 2009 LZMA utils

Pop 56.12
Vit 1.73

The LZMA utils package provides Unix utilities implementing LZMA compression from 7zip. It includes lzmash, a compression tool with an interface similar to that of gzip and bzip2. This project has now been superseded by xz.

Download Website Updated 15 Nov 2005 sdelta

Pop 54.11
Vit 3.01

sdelta analyzes two files and outputs the difference. It applies the difference to the first of the original files to construct a bit for bit clone of the second file. It is optimized for use with source tarballs, and also contains sdreq, the client for the Public Patch Repository, PPR. The PPR generates on demand source upgrade and downgrade patches for over a quarter of a million version specific source tarballs. By using sdreq you can acquire new source tarballs from the PPR several times faster and with only 10% of the downloading that you currently do.

Download Website Updated 04 Oct 2004 WebPack

Pop 53.58
Vit 1.75

WebPack is a shell script for automatically packing Web sites by shrinking them without affecting their functionality or appearance. It is also useful for losslessly shrinking image collections and locating corrupt files. It works by stripping unnecessary information and optimizing the compression of images, and by removing comments/whitespace from HTML, using readily-available tools.

No download Website Updated 11 Sep 2005 JAVA LZMA SDK

Pop 53.07
Vit 1.46

JAVA LZMA SDK provides developers with documentation, source code, and sample code necessary to write software that uses LZMA compression. LZMA is the default and general compression method of the 7z format in the 7-Zip compression program. LZMA provides a high compression ratio and very fast decompression. LZMA is an improved version of the famous LZ77 compression algorithm. It was improved by increasing the maximum compression ratio, keeping high decompression speed, and low memory requirements for decompressing.

Download Website Updated 28 Mar 2013 Lhasa

Pop 52.82
Vit 3.32

Lhasa is a Free Software replacement for the Unix LHA tool, for decompressing .lzh (LHA/LHarc) and .lzs (LArc) archives. The backend for the tool is a library, so it can be reused for other purposes. Lhasa aims to be compatible with as many types of lzh/lzs archives as possible. It also aims to generate the same output as the (non-free) Unix LHA tool, so it will act as a drop-in free replacement.

Download Website Updated 09 Oct 2005 SEA arc

Pop 52.69
Vit 2.12

This is a port of SEA arc from MS-DOS. It creates, modifies, and extracts from .arc files using the old Crunch, Squash, and Squeeze compression methods. It runs on most Unix/POSIX systems as well as mainframes and other microcomputers.

No download Website Updated 17 Aug 2004 HighLnk

Pop 52.31
Vit 1.00

HighLnk is a hard-linking tool, which scans the current directory, searching for files with the same content, then hard-linking this directory to another location, making two equal files only point to one real file on the media.

Download Website Updated 30 Jan 2001 BitComp

Pop 51.42
Vit 1.00

BitComp is a new compression method using bits repacking.

No download No website Updated 17 Jun 2013 snappy-c

Pop 51.04
Vit 1.00

snappy-c is a C port of the google snappy compressor (http://code.google.com/p/snappy/). The compressor is very fast with a reasonable compression ratio. It is mainly useful for projects that cannot integrate C++ code, but want snappy. It also contains a command line tool, a benchmark, random test code, and a fuzz tester. The compression code supports scather-gather and linear buffers. The scather gather code is ifdefed (-DSG) and can be removed with unifdef.

Download Website Updated 09 Apr 2010 Python-LZO

Pop 49.55
Vit 3.38

Python-LZO provides Python bindings for the LZO data compression library. You can access the LZO library from your Python scripts thereby compressing ordinary Python strings. LZO is a portable lossless data compression library written in ANSI C. It offers pretty fast compression and *very* fast decompression. Decompression requires no memory. In addition there are slower compression levels achieving a quite competitive compression ratio while still decompressing at this very high speed.


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A drive encryption script that makes encryption of storage media and virtual files quick and easy.