Levels 40.49 (LIZv1 + Huffman) give the best ratio, comparable to zlib and low levels of zstd/brotli, but with a faster decompression speedįast 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.Levels 30.39 (fastLZ4 + Huffman) adds Huffman coding to fastLZ4.

Levels 20.29 (LIZv1) are designed to give better ratio than LZ4 keeping 75% decompression speed.

Levels 10.19 (fastLZ4) are designed to give about 10% better decompression speed than LZ4.

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. Lizard v1.0 is an efficient compressor with fast decompression. LZ5 v1.5 is a modification of LZ4 which was meant for a better ratio at cost of slower compression and decompression. A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. It features an extremely fast decoder, with speed in multiple GB/s per core (0.71 Bytes/cycle). LZ4 v1.9.4 is lossless compression algorithm, providing compression speed at 400 MB/s per core (0.16 Bytes/cycle). It is similar in speed with deflate but offers more dense compression. It offers a very wide range of compression / speed trade-off, while being backed by a very fast decoder.īrotli v.1.0.9 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.

Zstandard v1.5.4 is a real-time compression algorithm, providing high compression ratios. only the codec plugin that goes to your existing 7-Zip installation (no GUI changes and no additional Hashers).complete setup with additions within the GUI and a modified Explorer context menu.The library used therefore is located here: Multithreading Library

This is the Github Page of 7-Zip ZS with support of additional Codecs.

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