Gzip

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|mimetypes={{mimetype|application/x-gzip}}
 
|mimetypes={{mimetype|application/x-gzip}}
 
|pronom={{PRONOM|x-fmt/266}}
 
|pronom={{PRONOM|x-fmt/266}}
 +
|wikidata={{wikidata|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.
 
'''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.
  
 
== Identification ==
 
== Identification ==
gzip files begin with two signature bytes: <code>0x1F 0x8B</code>. The third byte indicates the compression method, and is normally <code>0x08</code> (meaning DEFLATE).
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gzip files begin with two signature bytes: {{magic|0x1F 0x8B}}. The third byte indicates the compression method, and is normally <code>0x08</code> (meaning DEFLATE).
  
gzip 0.5 apparently used [[Freeze/Melt]] 1.x format, with signature bytes <code>0x1F 0x9E</code>.
+
gzip 0.5 apparently used [[Freeze/Melt]] 1.x format, with signature bytes {{magic|0x1F 0x9E}}.
  
 
== Specifications ==
 
== Specifications ==
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== Software ==
 
== Software ==
 
* [http://www.gzip.org/ Original gzip]
 
* [http://www.gzip.org/ Original gzip]
* [http://www.gnu.org/software/gzip/ GNU gzip]
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* [https://www.gnu.org/software/gzip/ GNU gzip]
 
* [[7-Zip]]
 
* [[7-Zip]]
* [http://zlib.net/ zlib]
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* [https://zlib.net/ zlib]
 
* [https://github.com/google/zopfli zopfli] (Gzip-compatible, better compression, but very slow compression)
 
* [https://github.com/google/zopfli zopfli] (Gzip-compatible, better compression, but very slow compression)
 
* [http://pastebin.com/kYKpfUjd Tiny gzip decompressor without using zlib] (C++)
 
* [http://pastebin.com/kYKpfUjd Tiny gzip decompressor without using zlib] (C++)
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* See also [[DEFLATE#Software]]
  
 
== Links ==
 
== Links ==

Revision as of 14:42, 3 November 2019

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

Software

Links

Personal tools
Namespaces

Variants
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