¶PunctuationPunctuationBasic LatinReviewed 2026-08-08

NUMBER SIGN

Number sign, the ASCII hash used in tags, code, and headings.

U+0023 · 15.1.0 · Common script

About this character

The number sign appears in social tags, programming, and markdown headings. In Unicode it belongs to Basic Latin and is shared by many text systems.

Copy formats

FormatValueAction
UTF-823
UTF-160023
HTML# / #
CSS\000023
JavaScript\u0023
Python\u0023
URL%23

Character

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