UnicodeCharactercom
ÿ
U+00FF · LATIN SMALL LETTER Y WITH DIAERESIS

Latin Small Letter Y with Diaeresis

  • CodepointU+00FF
  • NameLATIN SMALL LETTER Y WITH DIAERESIS
  • Decimal255
  • BlockLatin-1 Supplement (U+0080–U+00FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptLatin
  • CategoryLl — Lowercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthN — Neutral
  • MirroredNo

About this character

U+00FF (ÿ) is LATIN SMALL LETTER Y WITH DIAERESIS, a lowercase letter in the Latin-1 Supplement block. It belongs to the Latin script. It was added in Unicode 1.1 (1993).

Its uppercase form is U+0178 Ÿ.

It is precomposed. Under NFD it decomposes into U+0079 y + U+0308 ◌̈, and NFC recombines that sequence into this single codepoint, so both spellings are canonically equivalent and should compare equal after normalization. See the normalization guide.

How to type ÿ

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Encodings & escapes

UTF-8 encoder →
UTF-8C3 BF2 bytes
UTF-1600FF1 code unit
UTF-32000000FF4 bytes
HTML namedÿnamed character reference
HTML decimalÿ
HTML hexÿ
CSS\FFin content: "…"
JavaScript\u00FF
JSON\u00FF
Python\u00FF
Python\N{LATIN SMALL LETTER Y WITH DIAERESIS}by name
Java / C#\u00FF
C / C++\u00FFuniversal character name
Rust / Swift / PHP\u{FF}
Go\u00FF
Ruby\u00FF
Excel / Sheets=UNICHAR(255)
URL-encoded%C3%BFpercent-encoded UTF-8
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Normalization forms

Normalizer →
NFCunchanged
NFDU+0079 y + U+0308 ◌̈
NFKCunchanged
NFKDU+0079 y + U+0308 ◌̈
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Nearby in Latin-1 Supplement

All in block →
U+00F9ùLatin Small Letter U with Grave U+00FAúLatin Small Letter U with Acute U+00FBûLatin Small Letter U with Circumflex U+00FCüLatin Small Letter U with Diaeresis U+00FDýLatin Small Letter Y with Acute U+00FEþLatin Small Letter Thorn