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crabz vs Brotli: catalog facts
crabz	Brotli
Free Free and open source, dual-licensed under MIT and the Unlicense.	Free The open-source application is available without a license fee.
macOS, Linux, Command line	Windows, macOS, Linux
Multi-threaded compression in the style of pigz Supports Gzip, Zlib, BGZF, Mgzip, raw Deflate and Snap	Command-line tool and reusable compression library
Described by its author as a proof of concept Handles single streams, not archive formats like ZIP or 7z	The stream format does not include checksums or original length metadata.
Downloadable app	Downloadable app
Open source	Open source
License: MIT OR Unlicense	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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