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rapidgzip vs GNU Gzip: catalog facts
rapidgzip	GNU Gzip
Free Free and open source, dual-licensed under MIT and Apache 2.0.	Free Free software from the GNU Project.
Command line	Linux, Command line
Parallel decompression of ordinary gzip files Fast random access into compressed files	Available on nearly every Unix-like system The .gz format is read almost everywhere
Focused on decompression of gzip only Benefits depend on having many CPU cores	Compresses single files or streams, not multi-file archives Lower compression ratio than xz, zstd or lzip
Downloadable app	Downloadable app
Open source	Open source
License: MIT OR Apache-2.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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