Uppercase J Circumflex (Ĵ) is the Latin Extended-A character at Unicode U+0134 (LATIN CAPITAL LETTER J WITH CIRCUMFLEX). HTML5 names it Ĵ. Use it for Esperanto and other Latin-script text that needs Ĵ.
Remember
Character Ĵ
Unicode U+0134
Named entity Ĵ
Hex entity Ĵ
Decimal Ĵ
CSS escape \0134
Not the same ĵ (ĵ) · J · Ĥ
Named, hex, decimal, CSS, and a typed character all produce the same glyph: Ĵ. Prefer Ĵ or Ĵ in HTML markup. For the lowercase form see ĵ; for plain capital J see uppercase J.
Built with Named: Ĵ
Built with Hex: Ĵ
Built with Decimal: Ĵ
Built with CSS: Ĵ
Typed: Ĵ
Ĵurno (day)
How It Works
1. Named:Ĵ is the HTML5 name for U+0134 → Ĵ (case-sensitive: capital J).
2. Hex / decimal:Ĵ or Ĵ insert the same code point.
3. Typed: in a UTF-8 document you can paste Ĵ directly — same glyph, no entity.
4. CSS: use \0134 in content (not an HTML entity). #point::after appends that Ĵ after the paragraph text.
5. Esperanto:lang="eo" marks the language; Ĵurno spells Ĵurno (day).
Pitfalls & Tips
Common mistakes when working with Uppercase J Circumflex.
Case
Named entity is case-sensitive
Ĵ is capital J. ĵ is the lowercase letter ĵ, not a synonym.
Plain J
Not the same as plain J
Plain J (U+004A) has no circumflex. Do not substitute it when Ĵ is required for correct Esperanto spelling.
Prefer named
Prefer Ĵ in HTML
The named form is easier to read in source than numeric codes. Use hex/decimal when you need numeric-only markup.
CSS vs HTML
Do not mix escapes
\0134 belongs in CSS strings. Ĵ / Ĵ / Ĵ belong in HTML.
Fonts
Need Latin Extended-A coverage
Some fonts omit U+0134. Prefer fonts that cover Latin Extended-A (U+0100–U+017F).
Pair
Case is significant
Ĵ (U+0134) and ĵ (U+0135, ĵ) are different characters. Use the case your content requires.
Compatibility
Browser Support
Uppercase J Circumflex (U+0134) and its entity forms (Ĵ, Ĵ, Ĵ, CSS \\0134) are supported in all mainstream browsers when the page is UTF-8 and the font covers Latin Extended-A.
✓ Universal support
Uppercase J Circumflex (Ĵ)
Encode with named, hex, decimal, CSS escape, or type the character — same Unicode code point everywhere.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+0134 / ĴFull support
Bottom line: Prefer Ĵ in HTML text. Use Ĵ / Ĵ as equivalents, and \\0134 only inside CSS content.
Remember
Key Takeaways
Unicode: this letter is U+0134 (decimal 308) — glyph Ĵ.
Use Ĵ (named), Ĵ (hex), Ĵ (decimal), or the CSS escape \0134 in the content property. All render Ĵ. Prefer Ĵ or Ĵ for readable markup.
U+0134 (LATIN CAPITAL LETTER J WITH CIRCUMFLEX). Hex 0134, decimal 308, named entity Ĵ. It belongs to Latin Extended-A (U+0100–U+017F).
Yes. HTML5 defines Ĵ for U+0134. It is case-sensitive — write Jcirc with a capital J. Lowercase ĵ is a different character (ĵ).
U+0134 (Ĵ) is capital J with a circumflex. U+004A is plain J with no accent. Do not substitute plain J when Esperanto spelling needs Ĵ.
Use it for Esperanto (for example Ĵurno = day), linguistic content, and other Latin-script text that needs capital J with circumflex.
HTML entities (Ĵ, Ĵ, or Ĵ) go in markup. The CSS escape \0134 is used in stylesheets (usually in the content property of ::before/::after). Both render Ĵ.
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Did you know?
Uppercase J Circumflex is Unicode U+0134 (decimal 308) — glyph Ĵ (LATIN CAPITAL LETTER J WITH CIRCUMFLEX) in Latin Extended-A. HTML5 names it Ĵ (case-sensitive — capital J). Prefer it for Esperanto. Do not confuse it with lowercase ĵ (ĵ) or plain J.
