const.id

html-entity

#

#

#

HTML named character reference # maps to U+0023.

Mapping

Named reference
#
Code point(s)
U+0023
Decimal
35
Characters
#

Numeric character references

Named
Decimal
Hex

Usage

Prefer a named reference when the character must survive encoding mistakes or is awkward to type. Numeric references (#) are always valid HTML for the mapped code point(s).

Related

Unicode

U+0023

ASCII

0x23

Same character

Other entities

Entities that produce this code point

Source

Unicode
16.0.0
WHATWG
snapshot 2026-08-02