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Exclamation Mark HTML entity !
! is the HTML entity for Exclamation Mark ! (U+0021). Copy the decimal ! and hex ! codes plus CSS, JavaScript, Python and URL escapes.
- Entity
!- Code point
- U+0021
- Unicode name
- EXCLAMATION MARK
- Block
- Basic Latin
- Category
- Other punctuation (Po)
- Since
- Unicode 1.1
- Defined in
- HTML5
Codes to copy
| HTML named | !Works in HTML; in XML only & < > " ' are predefined. | |
|---|---|---|
| HTML decimal | !Works in HTML and XML. | |
| HTML hex | !Works in HTML and XML. | |
| CSS | content: "\21";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u0021"Also valid in JSON. | |
| Python | "\u0021"Python 3 string literal. | |
| Python by name | "\N{EXCLAMATION MARK}"Readable alternative using the Unicode name. | |
| URL | %21Percent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | 211 byte. | |
| UTF-16 | 00211 code unit, which is what JavaScript length counts. |
When to use it
The exclamation mark needs no escaping in HTML. The name exists mainly for completeness in the HTML5 list.
The name comes from the HTML5 list (much of it shared with MathML), so it works in every current browser but not in XML or XHTML served as XML, where the numeric reference is the safe choice.
More html syntax and ascii punctuation
#Number Sign$Dollar Sign%Percent Sign&Ampersand'Apostrophe(Left Parenthesis)Right Parenthesis*Asterisk
All html syntax and ascii punctuation · Every HTML entity · Encode or decode text
Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).