Left Right Arrow HTML entity ↔

↔ is the HTML entity for Left Right Arrow ↔ (U+2194). Copy the decimal ↔ and hex ↔ codes plus CSS, JavaScript, Python and URL escapes.

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: "\2194";`In a stylesheet, for ::before and ::after.
JavaScript	`"\u2194"`Also valid in JSON.
Python	`"\u2194"`Python 3 string literal.
Python by name	`"\N{LEFT RIGHT ARROW}"`Readable alternative using the Unicode name.
URL	`%E2%86%94`Percent-encoded UTF-8 bytes, for a path or query value.
UTF-8 bytes	`E2 86 94`3 bytes.
UTF-16	`2194`1 code unit, which is what JavaScript length counts.

A two-headed arrow for 'both ways' and exchanges, such as GBP ↔ EUR. The double version ⇔ means 'if and only if' in logic.

The name dates from HTML 4, so it works in every browser and in old email clients.

This character also has an emoji form: ↔️ Left-right Arrow. Add U+FE0F after it for the emoji style or U+FE0E for the text style.

Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).