Small i with Diaeresis HTML entity ï

ï is the HTML entity for Small i with Diaeresis ï (U+00EF). Copy the decimal ï and hex ï codes plus CSS, JavaScript, Python and URL escapes.

Entity
ï
Legacy form
&iuml (no semicolon)
Code point
U+00EF
Unicode name
LATIN SMALL LETTER I WITH DIAERESIS
Block
Latin-1 Supplement
Category
Lowercase letter (Ll)
Since
Unicode 1.1
Defined in
HTML 4.01 and HTML5

Codes to copy

HTML namedïWorks in HTML; in XML only & < > " ' are predefined.
HTML decimalïWorks in HTML and XML.
HTML hexïWorks in HTML and XML.
CSScontent: "\EF";In a stylesheet, for ::before and ::after.
JavaScript"\u00EF"Also valid in JSON.
Python"\u00ef"Python 3 string literal.
Python by name"\N{LATIN SMALL LETTER I WITH DIAERESIS}"Readable alternative using the Unicode name.
URL%C3%AFPercent-encoded UTF-8 bytes, for a path or query value.
UTF-8 bytesC3 AF2 bytes.
UTF-1600EF1 code unit, which is what JavaScript length counts.

When to use it

ï writes U+00EF (Small i with Diaeresis), a small letter from the Unicode Latin-1 Supplement block, encoded since Unicode 1.1. On a page saved as UTF-8 the letter can simply be typed; the entity helps in ASCII-only templates and code samples.

The name dates from HTML 4, so it works in every browser and in old email clients.

Browsers also accept the legacy form &iuml without a semicolon, for compatibility with old pages; new HTML should always end the reference with a semicolon.

More latin letters with accents

All latin letters with accents · Every HTML entity · Encode or decode text

Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).