Not to be confused with CJK Compatibility or CJK Compatibility Forms.
For a list of all CJK characters encoded in Unicode, see CJK Unified Ideographs.
Unicode character block
CJK Compatibility Ideographs
Range
U+F900..U+FAFF (512 code points)
Plane
BMP
Scripts
Han
Assigned
472 code points
Unused
40 reserved code points
Source standards
KS X 1001 Big5 IBM 32 JIS X 0213 ARIB STD-B24 KPS 10721-2000
Unicode version history
1.0.1 (1992)
302 (+302)
3.2 (2002)
361 (+59)
4.1 (2005)
467 (+106)
5.2 (2009)
470 (+3)
6.1 (2012)
472 (+2)
Unicode documentation
Code chart ∣ Web page
Note: [1][2] Range was initially part of the Private Use Area in Unicode 1.0.0,[3] and removed from it in Unicode 1.0.1.
CJK Compatibility Ideographs is a Unicode block created to contain mostly Han characters that were encoded in multiple locations in other established character encodings, in addition to their CJK Unified Ideographs assignments, in order to retain round-trip compatibility between Unicode and those encodings. However, it also contains 12 unified ideographs sourced from Japanese character sets from IBM.
The block has dozens of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[4][5]
These sequences specify the desired glyph variant for a given Unicode character.
^"Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
^"Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
^"3.5: Private Use Area" (PDF). The Unicode Standard, Version 1.0, Volume 1. Unicode Consortium. 1991. pp. 118–119. ISBN 0-201-56788-1.
CJKCompatibilityIdeographs is a Unicode block created to contain mostly Han characters that were encoded in multiple locations in other established character...
identified and named CJK Unified Ideographs. As of Unicode 15.1, Unicode defines a total of 97,680 characters. The term ideographs is a misnomer, as the...
specific characters in the CJKCompatibilityIdeographs Supplement block: CJK Unified IdeographsCJKCompatibilityIdeographs "Unicode character database"...
blocks for unknown reasons. The "CJKCompatibilityIdeographs" block contains these non-compatibility unified Han ideographs: (U+FA0E): 﨎 (U+FA0F): 﨏 (U+FA11):...
CJK Unified Ideographs Extension I is a Unicode block comprising CJK Unified Ideographs included in drafts of an amendment to China's GB 18030 standard...
CJK Unified Ideographs Extension B is a Unicode block containing rare and historic CJKideographs for Chinese, Japanese, Korean, and Vietnamese submitted...
Enclosed CJK Letters and Months is a Unicode block containing circled and parenthesized Katakana, Hangul, and CJKideographs. Also included in the block...
CJK Unified Ideographs Extension-A is a Unicode block containing rare Han ideographs submitted to the Ideographic Research Group between 1992 and 1998...
MJ059288 "CJK Unified Ideographs" (PDF). The Unicode Standard, Version 15.1. Unicode Consortium. 2023. Lunde, Ken (2023-08-11). "The Road to 'Ideograph Hell'…"...
process of defining specific characters in the CJKCompatibility Forms block: CJK Unified Ideographs Vertical Forms "Unicode character database". The...
CJK Unified Ideographs Extension C is a Unicode block containing rare and historic CJKideographs for Chinese, Japanese, Korean, and Vietnamese submitted...
encode any new compatibilityideograph to render them; the two blocks CJKCompatibilityIdeographs in the BMP and CJKCompatibilityIdeographs Supplement...
2.001, but still doesn't cover all of CJKCompatibilityIdeographs and extensions of the CJK Unified Ideographs. The 28-font OTC version of Source Sans...
to this block given that it has been agreed that no further Arabic compatibility characters will be encoded. Each Unicode point also has a property called...
This is a Supplementary Plane used for Chinese, Japanese, and Korean ideographs. Roughly 40% of Plane Two is included in this font. Unicode typeface Free...
mainly CJK U Ideographs Ext A, and Han Nom B covers mostly Ext B. ^§ Sun-Ext A covers 102 blocks of different languages. Sun-ExtB covers mostly CJK Supplement...
This is a list of notable CJK fonts (computer fonts with a large range of Chinese/Japanese/Korean characters). These fonts are primarily sorted by their...
additionally included the U+F900..FDFF range now occupied by CJKCompatibilityIdeographs, Alphabetic Presentation Forms and Arabic Presentation Forms-A)...
of thousands, are named in the pattern "cjk unified ideograph-hhhh". For example, U+4E00 一 CJK UNIFIED IDEOGRAPH-4E00. Formatting characters are named too:...
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