Unicode Converter
Inspect and convert text characters into Unicode code points (U+XXXX), character names, and escape encodings.
Quick Answer & Understanding Your Result
A Unicode Converter transforms text characters into their official Unicode code points (`U+XXXX`), `\uXXXX` escape sequences, ES6 `\u{XXXXX}` literals, and UTF-8 hex bytes in 0ms.
Core Unicode Conversion Formats
- Standard Java & JS (`\uXXXX`): 4-digit hexadecimal escape sequences used in JSON, JavaScript, Java, and C# strings.
- ES6 Code Points (`\u{XXXXX}`): Modern ECMAScript 6 escape syntax supporting characters above U+FFFF without surrogate pair splitting.
- Unicode Notation (`U+XXXX`): Official Unicode Consortium notation used in typography tables and font specifications.
- HTML Entities (`&#NNNN;`): Decimal and hexadecimal numeric character references for web pages.
Developer & Typography Applications
- Internationalization & Diacritic Debugging: Converting non-ASCII accents (Vietnamese, French, German) into safe ASCII source files.
- Astral Plane & Emoji Inspection: Handling 21-bit supplementary plane characters and surrogate pairs.
Enter your text or escape sequence above to convert to and from Unicode formats instantly.
Formula & Calculation Logic
Technical Specification & ASTMaps 21-bit character integers to Unicode hexadecimal code points and generates multi-format escape encodings conforming to Unicode 15.1.
Step-by-Step Guide
Input Text or Escapes
Paste characters, diacritics, emojis, or existing \uXXXX escape sequences into the editor.
Choose Operation Mode
Select Encode (Text to Unicode) or Decode (Unicode to Text).
Select Output Format
Pick standard \uXXXX, ES6 \u{...}, U+XXXX, HTML entity, or UTF-8 byte stream.
1-Click Copy Result
Copy clean Unicode escape sequences or decoded plaintext.
Worked Examples Table
| Example | Input Values | Calculated Result | Explanation |
|---|---|---|---|
| Encode Rocket Emoji '🚀' | Astral plane character U+1F680 encoded as modern ES6 code point literal. | ||
| ES6 Code Points with Emoji | Provides instant quantitative evaluation for comparative practical analysis. |
Frequently Asked Questions
Evidence-Based Methodology & Authoritative References
The Unicode Consortium - Unicode Standard Version 15.1
ECMA-262 - ECMAScript Unicode Escape Sequences
MDN Web Docs - String.prototype.codePointAt()
Standard: ISO / W3C / IETF Authoritative Domain Standard
Formula: Code Point Hex = 'U+' + char.codePointAt(0).toString(16).toUpperCase().padStart(4, '0')
Last Reviewed: August 21, 2026
Primary Source: The Unicode Consortium - Unicode Standard Version 15.1
Reference Document: ECMA-262 - ECMAScript Unicode Escape Sequences
Computation Privacy: 100% client-side 0ms computation, zero data retention
All algorithms, formatters, and data conversions run 100% locally in your browser following official technical standards (RFC, ISO, W3C). Output should be verified prior to mission-critical production deployment.
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Calculated results are modeled based on standard scientific and mathematical formulas. Please verify with domain-specific technical documentation for specialized applications.