U+00CF "Ï" Latin Capital Letter I with Diaeresis Unicode Character
Unicode Version 18.0
Source: Browser Default
U+00CF "Ï" Latin Capital Letter I with Diaeresis is a composed letter used in several languages, including French, Dutch, and English, to indicate that the letter I is pronounced separately from a preceding vowel, as in the French word "naïf" or the English name "Zoë," thereby preventing it from forming a digraph or diphthong. This character is formed by placing two dots, known as a diaeresis or umlaut, above the capital letter I, and it differs from a simple I in both visual appearance and phonetic function. In computing, it is distinct from the standalone letter I and the combining diaeresis mark (U+0308), allowing for precise text rendering and linguistic accuracy in digital environments.
General Properties
Code Point
U+00CF
Name
Latin Capital Letter I with Diaeresis
Unicode 1.0 Name
Latin Capital Letter I Diaeresis
Decomposition Mapping
Encodings
HTML Decimal Encoding
Ï
HTML Hex Encoding
Ï
UTF-8 Encoding
0xC3 0x8F
UTF-16 Encoding
0x00CF
UTF-32 Encoding
0x000000CF
C/C++/Java Escape
\u00cf
Unicode Properties
Numeric Value
NaN
Simple Lowercase Code Point
Lowercase Code Point
Simple Case Folding
Case Folding
NFKC Casefold
NFKC Simple Casefold
Script Extensions
Latin