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Unicode Escape/Unescape - Convert Unicode Characters Online

Convert text to Unicode escape sequences and back. Supports \uXXXX, \x, HTML entities, and CSS escapes. Essential for developers.

Input Text

Escape Format

Only escape non-ASCII characters

Output

Character Info

Select text to see character details

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Frequently Asked Questions

Unicode escapes represent characters using their code points. For example, \u0041 represents 'A' (code point 65). They allow any Unicode character in ASCII-only contexts.

JavaScript/JSON (\uXXXX), Python/C (\xXX), HTML entities (&#XXXX; or &#xXXXX;), CSS (\XXXX), and full Unicode notation (U+XXXX).

Use them in source code for special characters, in JSON for non-ASCII text, in HTML/CSS when direct characters cause encoding issues, or for obfuscation.

\uXXXX is 4-digit hexadecimal for Unicode code points (JavaScript, Java). \xXX is 2-digit hex for single bytes, limited to 0-255 (C, Python bytes).

Emoji above U+FFFF require surrogate pairs in \u format (e.g., 😀 = \uD83D\uDE00) or extended syntax (\u{1F600}) in ES6 JavaScript.

HTML entities like A (decimal) or A (hex) represent characters in HTML. They're useful when charset issues prevent direct character use.

Yes. Escaping preserves all character information. Unescaping recovers the original text exactly, including spaces and special characters.

Characters outside the Basic Multilingual Plane (above U+FFFF) are encoded as surrogate pairs - two \u escapes that together represent one character.

Yes. Most parsers handle mixed content. 'Hello \u0057orld' correctly becomes 'Hello World' when unescaped.

Control characters (U+0000-U+001F) are escaped as \u0000-\u001F. Null (\u0000) may cause issues in some contexts.