HTML Entity for Uppercase J Circumflex (Ĵ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+0134
HTML Entity for Uppercase J Circumflex tutorial illustration

What You'll Learn

How to display the uppercase J with circumflex (Ĵ) in HTML using named entity, hexadecimal, decimal, and CSS escape methods. This character is U+0134 in the Latin Extended-A block and is the capital form of the Esperanto letter ĵ, where the circumflex marks the voiced palatal fricative sound.

Render it with Ĵ, Ĵ, Ĵ, or CSS escape \134. The named entity Ĵ is often the most readable option in HTML source.

⚡ Quick Reference — Uppercase J Circumflex Entity

Unicode U+0134

Latin Extended-A

Hex Code Ĵ

Hexadecimal reference

HTML Code Ĵ

Decimal reference

Named Entity Ĵ

Most readable option

Reference Table
Name           Value
────────────   ──────────
Unicode        U+0134
Hex code       Ĵ
HTML code      Ĵ
Named entity   Ĵ
CSS code       \134
Meaning        Latin capital letter J with circumflex
Related        U+0135 = ĵ (lowercase)
Block          Latin Extended-A (U+0100–U+017F)
1

Complete HTML Example

A simple example showing the uppercase J circumflex (Ĵ) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\134";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x134;</p>
<p>Symbol (decimal): &#308;</p>
<p>Symbol (named): &Jcirc;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try It Yourself

🌐 Browser Support

The uppercase J circumflex (Ĵ) and the named entity &Jcirc; are supported in modern browsers when UTF-8 is used:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See the uppercase J circumflex (Ĵ) in Esperanto and linguistic contexts:

Large glyphĴ
EsperantoĴurno (day), capital form of ĵurno
Case pairĴ (uppercase) / ĵ (lowercase, &jcirc;)
Named entity&Jcirc; renders as Ĵ
Not the same asJ (plain)  |  ǰ (j with caron)
Numeric refs&#x134; &#308; &Jcirc; \134

🧠 How It Works

1

Named Entity

&Jcirc; is the standard named entity for Ĵ—readable in source HTML and part of the HTML5 entity set.

HTML markup
2

Hexadecimal Code

&#x134; uses the Unicode hexadecimal value 134 to display the character. The x prefix indicates hexadecimal format.

HTML markup
3

Decimal HTML Code

&#308; uses the decimal Unicode value 308 to display the same character. A common method for Latin Extended-A characters.

HTML markup
4

CSS Entity

\134 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All four methods produce the glyph: Ĵ. Unicode U+0134 sits in Latin Extended-A. It decomposes to J (U+004A) + combining circumflex (U+0302). Lowercase equivalent: U+0135 (&jcirc;). Do not confuse with plain J or ǰ (j with caron).

✅

Use Cases

The uppercase J circumflex (Ĵ) is commonly used in:

🌐 Esperanto

Capital Ĵ at the start of sentences and in titles (e.g. Ĵurno) in Esperanto text.

📚 Language learning

Esperanto courses, dictionaries, and educational content teaching the letter pair Ĵ/ĵ.

🔤 Linguistics

Phonetic transcriptions and linguistic notation using the circumflex-accented capital J.

🌐 Internationalization

Websites and apps supporting Esperanto with proper encoding and character display.

📄 Documentation

Technical or reference documentation with Esperanto terms and character tables.

♿ Accessibility

Correct Unicode with lang="eo" helps screen readers handle Ĵ in Esperanto content.

🔍 Search & SEO

Proper spelling helps search indexing for Esperanto-language content.

💡 Best Practices

Do

  • Use &Jcirc; in HTML when possible for readability
  • Serve pages as UTF-8; you can also type Ĵ directly in UTF-8 source
  • Set lang="eo" on Esperanto content to aid pronunciation
  • Use fonts that support Latin Extended-A characters
  • Distinguish Ĵ (circumflex) from plain J and ǰ (caron)

Don’t

  • Substitute plain J when Ĵ is required for correct Esperanto spelling
  • Confuse circumflex Ĵ with caron ǰ or other accented J variants
  • Put CSS escape \134 in HTML text nodes
  • Use padded Unicode notation like U+00134—the correct value is U+0134
  • Use \00134 in CSS—the correct escape is \134

Key Takeaways

1

Four references render Ĵ; named entity is most readable

&#x134; &#308; &Jcirc;
2

For CSS stylesheets, use the escape in the content property

\134
3

Unicode U+0134 — LATIN CAPITAL LETTER J WITH CIRCUMFLEX

4

Essential for Esperanto, linguistic content, and internationalized web pages

5

Previous: Uppercase J (J)   Next: Uppercase J Fishhook

❓ Frequently Asked Questions

Use &Jcirc; (named), &#x134; (hex), &#308; (decimal), or \134 in CSS content. The named entity &Jcirc; is the most readable for HTML content.
U+0134 (LATIN CAPITAL LETTER J WITH CIRCUMFLEX). Latin Extended-A block. Hex 134, decimal 308. Used notably in Esperanto.
When writing capitalized Esperanto text, linguistic or phonetic content, educational material for Esperanto, multilingual sites that support Ĵ, and any content requiring the circumflex-accented capital J.
Yes. The named HTML entity is &Jcirc;. It is part of the HTML5 standard and is supported in modern browsers. You can also use numeric references or type Ĵ directly in UTF-8.
HTML code (&#308; or &#x134;) or the named entity &Jcirc; is used in HTML content. The CSS entity (\134) is used in CSS, e.g. in the content property of pseudo-elements. Both produce Ĵ but in different contexts.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
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I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

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