The ultimate BWT-based file compressor
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Latest commit 24b6017 Jan 20, 2018
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src Updated to v1.30 Jan 11, 2018
.gitignore Initial commit Apr 9, 2016
LICENSE Create LICENSE May 20, 2016 Update Jan 20, 2018 Add files via upload Jan 11, 2018 Add files via upload Jan 11, 2018

BCM v1.30


BCM is a high-performance file compressor that utilizes advanced context modeling techniques to achieve a very high compression ratio. All in all, it's like a big brother of the BZIP2.

Quick Benchmark

ENWIK8 Compressed Size
Original 100,000,000 bytes
GZIP -9 36,445,248 bytes
BZIP2 -9 29,008,758 bytes
7-Zip Ultra 24,864,804 bytes
BCM -b100 20,789,667 bytes


Ilya Muravyov


Special thanks to Yuta Mori, Matt Mahoney, Eugene Shelwien, Alexander Rhatushnyak, Przemyslaw Skibinski, Malcolm Taylor and LovePimple.