CiphersOnline
Encryption Online
Encoding
Unicode

Unicode Converter

Convert text to Unicode escape sequences and decode Unicode escapes, HTML entities, and international text back into readable form. Useful for JavaScript, JSON, localization, debugging, and multilingual content.

Input
0 chars · 0 bytes
Try:
Result
✓ Convert to Unicode code points ✓ Emoji and multilingual text support ✓ Supports U+XXXX and \uXXXX formats ✓ Client-side processing only
Examples
Encode accented text
Input Café naïve résumé
Output \u0043\u0061\u0066\u00e9\u0020\u006e\u0061\u00ef\u0076\u0065\u0020\u0072\u00e9\u0073\u0075\u006d\u00e9

Convert every character into its Unicode escape representation, including ASCII letters, spaces, and accented characters.

Decode escaped API text
Input Order total: \u20ac99 \u2014 status: \u2713
Output Order total: €99 — status: ✓

Decode escaped symbols commonly found in API responses, logs, JSON strings, and localization files.

Decode HTML entities
Input Tom & Jerry © 2026
Output Tom & Jerry © 2026

Decode common HTML entities and numeric character references back into readable text.

Encode emoji text
Input Hello ☕ 😀
Output \u0048\u0065\u006c\u006c\u006f\u0020\u2615\u0020\ud83d\ude00

Convert text, symbols, and emoji into Unicode escape sequences. Characters outside the Basic Multilingual Plane may appear as UTF-16 surrogate pairs.

How Unicode Encoding Works

Unicode assigns a unique code point to characters, symbols, scripts, and emoji from many writing systems. For example, the Latin letter A is U+0041, the euro sign € is U+20AC, the check mark ✓ is U+2713, and many emoji are represented by code points outside the Basic Multilingual Plane.

Unicode escape sequences make these characters readable in source code, JSON strings, configuration files, and debugging tools. Common formats include JavaScript-style \uXXXX escapes, longer code point notation, and HTML entities.

This converter can turn readable text into escape sequences and decode escaped Unicode or HTML entities back into normal text.

Unicode and Security

Unicode conversion is not encryption. It only changes how text is represented and can usually be reversed without a password or secret key.

Unicode escapes are useful for compatibility, source code, localization, and debugging, but they do not protect sensitive information.

Common Unicode Use Cases

Unicode conversion is commonly used in JavaScript, JSON, APIs, localization files, multilingual websites, text debugging, and source code where special characters need to be represented safely.

Developers often use Unicode escapes to inspect invisible characters, debug broken text, preserve multilingual strings, work with emoji, and safely represent characters that may be difficult to type or display directly.

Unicode vs ASCII and UTF-8

ASCII is an older character set that covers only 128 basic characters, mostly English letters, digits, punctuation, and control codes. Unicode is much broader and can represent characters from many languages, symbols, and emoji.

UTF-8 is a way to encode Unicode text as bytes. Unicode defines what each character means, while UTF-8 defines how those characters are stored or transmitted in binary form.

Unicode Escapes and HTML Entities

Unicode escapes such as \u041F are common in JavaScript, JSON, and source code. HTML entities such as © or © are commonly used in HTML documents.

Both formats can represent characters indirectly, but they are used in different contexts. Unicode escapes are common in programming languages, while HTML entities are designed for web markup.

FAQ

Unicode is a universal character encoding standard that supports text from almost all languages and symbol systems.

It converts regular text into Unicode escape sequences and decodes Unicode sequences back into readable text.

Yes. Unicode includes emoji, symbols, mathematical characters, and many international scripts.

No. ASCII supports only basic English characters, while Unicode supports thousands of characters from many languages.

No. The converter works entirely in your browser and processes data locally.

Characters outside the Basic Multilingual Plane, such as emoji, use surrogate pairs in UTF-16 encoding.

Yes. The tool supports common JavaScript-style \\uXXXX Unicode sequences.

A Unicode escape sequence represents a character using code notation such as \u0041 for A, \u20ac for the euro sign €, or \u2713 for the check mark ✓.

Unicode defines character code points, while UTF-8 is an encoding format that stores Unicode text as bytes.

Yes. The converter can decode common HTML entities and numeric character references back into readable text.

Many emoji are outside the Basic Multilingual Plane. In UTF-16, these characters are represented as two code units called a surrogate pair.
Related tools

Binary Converter Online

Convert text into 8-bit binary groups and decode binary bytes back into readable text.

ASCII Converter

Convert ASCII characters and numeric codes for protocol and parser workflows.

JWT Decoder Online

Decode JWT tokens in-browser and inspect header, payload, claims, and expiration data.

All Encoding and Data Conversion →