7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard

https://mcmilk.de/projects/7-Zip-zstd/

This is the Github Page of 7-Zip ZS with support of additional Codecs. The library used therefore is located here: Multithreading Library

You can install it in two ways:

1. complete setup with additions within the GUI and a modified Explorer context menu
2. only the codec plugin that goes to your existing 7-Zip installation (no GUI changes and no additional Hashers)

Status

  

Codec overview

1. Zstandard v1.4.4 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.
   • Levels: 1..22
2. Brotli v.1.0.7 is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.
   • Levels: 0..11
3. LZ4 v1.9.2 is lossless compression algorithm, providing compression speed at 400 MB/s per core (0.16 Bytes/cycle). It features an extremely fast decoder, with speed in multiple GB/s per core (0.71 Bytes/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio.
   • Levels: 1..12
4. LZ5 v1.5 is a modification of LZ4 which gives a better ratio at cost of slower compression and decompression.
   • Levels: 1..15
5. Lizard v1.0 is an efficient compressor with very fast decompression. It achieves compression ratio that is comparable to zip/zlib and zstd/brotli (at low and medium compression levels) at decompression speed of 1000 MB/s and faster.
   • Levels 10..19 (fastLZ4) are designed to give about 10% better decompression speed than LZ4
   • Levels 20..29 (LIZv1) are designed to give better ratio than LZ4 keeping 75% decompression speed
   • Levels 30..39 (fastLZ4 + Huffman) adds Huffman coding to fastLZ4
   • Levels 40..49 (LIZv1 + Huffman) give the best ratio, comparable to zlib and low levels of zstd/brotli, but with a faster decompression speed
6. Fast LZMA2 v1.0.1 is a LZMA2 compression algorithm, 20% to 100% faster than normal LZMA2 at levels 5 and above, but with a slightly lower compression ratio. It uses a parallel buffered radix matchfinder and some optimizations from Zstandard. The codec uses much less additional memory per thread than standard LZMA2.
   • Levels: 1..9

7-Zip Zstandard Edition (full setup, with GUI and Explorer integration)

Installation (via setup)

1. download the setup from here 7-Zip ZS Releases
2. install it, like the default 7-Zip
3. use it ;)
4. you may check, if the 7-Zip can deal with Zstandard or other codecs via this command: 7z.exe i

from https://github.com/mcmilk/7-Zip-zstd