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pixzZstandard
Free

Free and open source.

 Free

Free and open source, dual licensed BSD or GPLv2.

macOS, Linux, Command line Windows, macOS, Linux, Command line
  • Compresses in parallel across processor cores
  • Indexed blocks allow random access into tar.xz archives
  • 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
  • Command line only, with no graphical interface
  • Usually built from source
  • 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 not stated License: BSD-3-Clause
No account needed No account needed
Works offline Works offline

Checked September 24, 2026

Checked September 21, 2026

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