lrzip review
A free, open-source LRZ compressor for large, redundancy-heavy archives.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
lrzip is a free, open-source command-line compression utility for large files with long-distance redundancy. It is aimed at Linux and other POSIX-like environments, with support for macOS 10.5 and later. The utility can process files through standard input and output, while lrztar and lrzuntar extend the workflow to directory compression and extraction through TAR. It is most relevant to technical users who want configurable compression behavior rather than a primarily graphical archive manager.
Its standout capability is the combination of rzip-style preprocessing and multiple compression backends. lrzip can reduce long-distance redundancy before applying LZMA, ZPAQ, LZO, gzip, or bzip2 compression. Users can configure compression level, memory, window size, and thread count, and the tool supports multithreaded compression and decompression. AES-based password encryption, archive integrity testing, and checking add useful controls for stored or transferred archives. This breadth gives the utility several compression paths while keeping its workflow centered on LRZ archives.
The main fit consideration is its command-line and format focus. lrzip supports LRZ archives and TAR-compressed LRZ through lrztar, so it suits users who can work within that ecosystem and want long-distance redundancy reduction. It is less suitable for people seeking a graphical interface, a broad set of archive formats, or a general-purpose desktop archiver. Choose lrzip when tunable resources, backend choice, encryption, integrity checking, and large-file compression matter; choose another tool when a more conventional archive workflow is the priority.
lrzip pros and cons
- Where it wins
- Reduces long-distance redundancy before backend compression
- Supports LZMA, ZPAQ, LZO, gzip, and bzip2 backends
- Includes encryption, integrity checks, multithreading, and resource controls
- Where it doesn't
- Centers on LRZ and TAR-compressed LRZ archives
- Command-line operation is less suited to graphical workflows
- Its core platform focus is Linux/POSIX-like systems and macOS
lrzip fact sheet, pricing and score →
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