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pigz vs rapidgzip: catalog facts
pigz	rapidgzip
Free Free and open source with no paid tier.	Free Free and open source, dual-licensed under MIT and Apache 2.0.
Linux, Command line	Command line
Uses all CPU cores when compressing Output is standard gzip format	Parallel decompression of ordinary gzip files Fast random access into compressed files
Decompression gains little from multiple cores Distributed as source code; you may need to compile it	Focused on decompression of gzip only Benefits depend on having many CPU cores
Downloadable app	Downloadable app
Open source	Open source
License: Zlib	License: MIT OR Apache-2.0
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 October 1, 2026

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