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Underscore HTML entity _
_ is the HTML entity for Underscore _ (U+005F). Copy the decimal _ and hex _ codes plus CSS, JavaScript, Python and URL escapes.
- Entity
_- Also written
_- Code point
- U+005F
- Unicode name
- LOW LINE
- Block
- Basic Latin
- Category
- Connector punctuation (Pc)
- 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: "\5F";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u005F"Also valid in JSON. | |
| Python | "\u005f"Python 3 string literal. | |
| Python by name | "\N{LOW LINE}"Readable alternative using the Unicode name. | |
| URL | _Percent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | 5F1 byte. | |
| UTF-16 | 005F1 code unit, which is what JavaScript length counts. |
When to use it
The low line or underscore. It needs no escaping in HTML; in Markdown it can start emphasis, which is where the entity occasionally helps.
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
{Left Curly Bracket]Right Square Bracket|Vertical Line\Backslash}Right Curly Bracket[Left Square Bracket@At Sign?Question Mark
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).