Editing Big5 (section)

{{Short description|Encoding for Traditional Chinese characters}}
{{Other uses|Big Five (disambiguation)}}
{{Multiple issues|
{{More citations needed|date=January 2021}}
{{tone|date=June 2013}}
{{Lead too short|date=September 2023}}
}}
{{Infobox character encoding
| name = Big5
| mime = Big5
| image = 
| caption = 
| alias = Big-5, 大五碼
| by = [[Institute for Information Industry]]
| standard = 
| lang = [[traditional Chinese characters|Traditional Chinese]], [[English language|English]]<br/>'''Partial support:'''<br/>[[Simplified Chinese]], [[Greek language|Greek]], [[Japanese language|Japanese]], [[Russian language|Russian]], [[Bulgarian language|Bulgarian]], some of [[International Phonetic Alphabet|IPA]] letters for phonetic usage.<ref>{{cite web|url=http://ash.jp/code/cn/big5tbl.htm|title=Big5 (Traditional Chinese) character code table|access-date=2007-08-23|archive-date=2002-05-04|archive-url=https://web.archive.org/web/20020504075931/http://ash.jp/code/cn/big5tbl.htm|url-status=dead}}</ref>
| status =
| extends = [[ASCII]]{{efn|name=ASCII}}
| extensions = [[Windows-950]], [[Hong Kong Supplementary Character Set|Big5-HKSCS]], [[#Extensions|numerous others]]
| prev = 
| next = 
| encodes = 
| classification = [[Extended ASCII]],{{efn|Not in the strictest sense of the term, as ASCII bytes can appear as trail bytes.}}{{efn|Big5 does not specify a single-byte component; however, ASCII (or an extension) is used in practice.|name=ASCII}} [[variable-width encoding]], [[double-byte character set|DBCS]], [[CJK characters|CJK encoding]]
| otherrelated = [[CNS 11643]]
| extra = <div style="text-align: left;">{{notelist}}</div>
}}

'''Big-5''' or '''Big5''' ({{lang-zh|t=大五碼}}) is a [[Chinese character encoding]] method used in [[Taiwan]], [[Hong Kong]], and [[Macau]] for [[traditional Chinese characters]].

The [[People's Republic of China (PRC)]], which uses [[simplified Chinese characters]], uses the [[GB 18030]] character set instead (though it can also substitute Big-5 or UTF-8).{{citation needed|date=June 2025}}

Big5 gets its name from the consortium of five companies in Taiwan that developed it.<ref>{{Cite web|title=Character Sets|url=http://chinesemac.org/pages/character_sets.html|access-date=2021-08-31|website=chinesemac.org|archive-date=2017-08-12|archive-url=https://web.archive.org/web/20170812225334/http://chinesemac.org/pages/character_sets.html|url-status=live}}</ref>