Versions tested: 0.7.3
Optimal parameters: default
Authors: Ilya Grebnov
Algorithms: LZP, BWT/ST+MTF/WFC
Notable peformances: -


GRZip - is a high-performance file compressor based on Burrows-Wheeler Transform and Advanced Weighted Frequency Counting. It uses The Block-Sorting Lossless Data Compression Algorithm, which has received considerable attention over recent years for both its simplicity and effectiveness. This implementation has compression rate of 2.378 bps on the Calgary Corpus.
the former website


The compressor is featured in the BWT comparison.

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Mirrored here in hopes that it is in concordance with the authors wishes: This program is free software. This program is distributed in the hope that it will be useful... [the source code]

Qualified configurations
Ver Rating CPR DPR S.E. R.E. Ratio C. kB/s D. kB/s
0.7.3 22 37 3 51 0 3.215 4097 5083
-a -i
0.7.3 20 31 3 50 0 3.180 3915 5510

Version info

0.7.3, tar: yes, mode: 32-bit, crc32: 47f3e068, decoder: 40 kB, tested: 2010 Apr 16
compression: grzip.exe c <args> <cfile> <src>
decompression: grzip.exe e <cfile>