Gzip

From Just Solve the File Format Problem
Jump to: navigation, search
File Format
Name gzip
Ontology
Extension(s) .gz
MIME Type(s) application/x-gzip
PRONOM x-fmt/266
Wikidata ID Q10287816

gzip is a compressed file format and command line utility used primarily on Unix-style operating systems, but available cross-platform. It uses DEFLATE compression.

Contents

Identification

gzip files begin with two signature bytes: 0x1F 0x8B. The third byte indicates the compression method, and is normally 0x08 (meaning DEFLATE).

gzip 0.5 apparently used Freeze/Melt 1.x format, with signature bytes 0x1F 0x9E.

Specifications

Sample files

Software

See also DEFLATE#Software.

Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox