Alternatives to Kanzi
A multi-threaded lossless data compressor written in Java with selectable transforms and entropy codecs. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Kanzi
A multi-threaded lossless data compressor written in Java with selectable transforms and entropy codecs.
Replacements
Listings that take over the same core job as Kanzi.
Zstandard
Meta's compression tool that hits near-zlib ratios at far higher speed, now used across Linux and modern filesystems.
Zstandard uses a standardised format recognised by many tools, needs no Java runtime, and offers long-range and dictionary modes, but lacks Kanzi's runtime choice of transforms and codecs.
XZ Utils
The standard command-line tool for creating and reading .xz files.
XZ Utils uses the widely shipped .xz format with strong LZMA2 ratios and no Java requirement, though high levels are slow and memory-hungry.
bzip3
A command-line compressor and library intended as a stronger successor to bzip2.
bzip3 is a native command-line compressor and library aimed at beating bzip2, with helper commands, though its .bz3 format is also less widely supported.
lrzip
A command-line compressor for large files that finds redundancy across long distances in the data.
lrzip is a native compressor built for large files with distant redundancy, offering LZMA and ZPAQ back ends instead of Kanzi's configurable transform pipeline.
Lzip
A command-line lossless compressor using a simplified LZMA, designed for long-term archiving and data safety.
Lzip uses a simplified LZMA focused on long-term archiving with integrity checks and recovery options, but it is single-threaded unless you use plzip.
Brotli
Compress and decompress data using the Brotli format.
Brotli is an MIT-licensed compressor and library with a widely used format, though its stream format lacks checksums and original length metadata.
Similar software
Related functionality, not a direct replacement.
Precomp
A command-line precompressor that unpacks compressed streams inside files so other compressors shrink them further.
LZ4
A lossless compression format and command-line tool built for very high compression and decompression speed.
zpaqfranz
Keep compressed, versioned archives of changing files.
pigz
A parallel implementation of gzip that uses multiple CPU cores to compress data faster.
