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GNU Gzip vs Zstandard: catalog facts
GNU GzipZstandard
Free

Free software from the GNU Project.

Free

Free and open source, dual licensed BSD or GPLv2.

Linux, Command line Windows, macOS, Linux, Command line
  • Available on nearly every Unix-like system
  • The .gz format is read almost everywhere
  • Compression close to zlib's ratio at several times the speed, and much faster decompression
  • The format is standardised in RFC 8878 with multiple independent implementations
  • Compresses single files or streams, not multi-file archives
  • Lower compression ratio than xz, zstd or lzip
  • A command-line tool with no graphical interface of its own
  • Maximum ratio is below xz or 7z at their slowest settings, which is the trade it makes on…
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: BSD-3-Clause
No account needed No account needed
Works offline Works offline

Checked September 23, 2026

Checked September 21, 2026

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