UnicodeCharactercom
й
U+0439 · CYRILLIC SMALL LETTER SHORT I

Cyrillic Small Letter Short I

  • CodepointU+0439
  • NameCYRILLIC SMALL LETTER SHORT I
  • Decimal1081
  • BlockCyrillic (U+0400–U+04FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptCyrillic
  • CategoryLl — Lowercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthA — Ambiguous
  • MirroredNo

About this character

U+0439 (й) is CYRILLIC SMALL LETTER SHORT I, a lowercase letter in the Cyrillic block. It belongs to the Cyrillic script. It was added in Unicode 1.1 (1993).

Its uppercase form is U+0419 Й.

It is precomposed. Under NFD it decomposes into U+0438 и + U+0306 ◌̆, 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 й

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Encodings & escapes

UTF-8 encoder →
UTF-8D0 B92 bytes
UTF-1604391 code unit
UTF-32000004394 bytes
HTML namedйnamed character reference
HTML decimalй
HTML hexй
CSS\439in content: "…"
JavaScript\u0439
JSON\u0439
Python\u0439
Python\N{CYRILLIC SMALL LETTER SHORT I}by name
Java / C#\u0439
C / C++\u0439universal character name
Rust / Swift / PHP\u{439}
Go\u0439
Ruby\u0439
Excel / Sheets=UNICHAR(1081)
URL-encoded%D0%B9percent-encoded UTF-8
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Normalization forms

Normalizer →
NFCunchanged
NFDU+0438 и + U+0306 ◌̆
NFKCunchanged
NFKDU+0438 и + U+0306 ◌̆
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Looks similar

Characters that Unicode’s security data (UTS #39 confusables) lists as visually confusable with this one. Useful for spotting lookalike spoofing in URLs and usernames.

U+045DѝCyrillic Small Letter I with Grave
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Nearby in Cyrillic

All in block →
U+0433гCyrillic Small Letter Ghe U+0434дCyrillic Small Letter De U+0435еCyrillic Small Letter Ie U+0436жCyrillic Small Letter Zhe U+0437зCyrillic Small Letter Ze U+0438иCyrillic Small Letter I U+043AкCyrillic Small Letter Ka U+043BлCyrillic Small Letter El U+043CмCyrillic Small Letter Em U+043DнCyrillic Small Letter En U+043EоCyrillic Small Letter O U+043FпCyrillic Small Letter Pe