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LZ4 vs crabz: catalog facts
LZ4	crabz
Free Free and open source.	Free Free and open source, dual-licensed under MIT and the Unlicense.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Very fast compression and decompression Scales across CPU cores	Multi-threaded compression in the style of pigz Supports Gzip, Zlib, BGZF, Mgzip, raw Deflate and Snap
Lower compression ratio than zstd or xz Compresses single files or streams, not a full archiver	Described by its author as a proof of concept Handles single streams, not archive formats like ZIP or 7z
Downloadable app	Downloadable app
Open source	Open source
License: BSD-2-Clause (library), GPL-2.0 (command-line tool)	License: MIT OR Unlicense
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.