What is the Alt code for the hashtag symbol?

On Windows, hold Alt and type 35 on the numeric keypad (Alt+35), or use Alt+0035 for the same result.

What is the Unicode code point for the hashtag symbol?

The standard # is U+0023, officially named NUMBER SIGN. A fullwidth version used in CJK typesetting exists at U+FF03 (＃).

What is the HTML entity for the hashtag symbol?

A raw # rarely needs escaping in HTML text, but the named entity &num; or the numeric entity # work anywhere a literal # gets filtered or misread.

How do I type # on a UK keyboard?

Press the key immediately to the left of Enter, labeled "# ~" — no Shift needed. On a UK layout, Shift+3 types £ instead of #.

Is the hashtag the same symbol as the musical sharp sign?

No. The hashtag (#, U+0023) has horizontal strokes crossing vertical ones at a slight slant, while the musical sharp (♯, U+266F) has vertical strokes crossing horizontal ones. Most keyboards lack a sharp key, so # is commonly typed in its place.

Why is # also called the pound sign or number sign?

In the US, # placed before a number means "number" (e.g. "Room #4"), and after a number it once denoted pounds in weight (e.g. "5#" for five pounds). Phone systems also call the # key "pound" or "hash".

What does # mean on social media?

On platforms like X, Instagram, and TikTok, a word or phrase prefixed with # becomes a clickable hashtag that groups posts around the same topic.

Hashtag Symbol

Name: Hashtag Symbol
Availability: InStock
Author: Nham Vu

Copy the hashtag symbol (#) and find its Alt code, Unicode value, and keyboard shortcut for any keyboard layout.

Hashtag Symbol

Click the symbol to copy it

Formats

Character #

Unicode U+0023

HTML entity &num;

HTML decimal #

CSS escape \0023

URL encoded %23

Click any row to copy that exact string.

Keyboard Shortcuts

System / layout	Shortcut	Notes
Windows (Alt code)		Hold Alt, type 35 on the numeric keypad.
Windows (Unicode)		Same result using the 4-digit code.
US keyboard (Win/Mac)		Standard shifted key on a US layout.
UK keyboard		Unshifted, on the key left of Enter. Shift+3 types £ instead.
Mac (UK layout)		Shift+3 types £ on a Mac UK layout, so # moves to Option+3.
Linux (GTK)		Type the hex code, then press Enter or Space.
Microsoft Word		Type 0023 then press Alt+X to convert it.

Try it

Turn a word into a hashtag-style string and copy the result.

#topten

Copied!

Summary

Copy the hashtag symbol (#) and find its Alt code, Unicode value, and keyboard shortcut for any keyboard layout.

How it works

Click the large # symbol to copy the plain character to your clipboard.
Or click any row in the Formats list to copy that exact encoded form (Unicode, HTML entity, URL encoding).
Switch to the Fullwidth tab to copy the wide CJK-width variant instead.
Check the keyboard shortcut table for your OS and keyboard layout — the # key is not in the same place on every layout.
Use the "Try it" box to build a hashtag from a word and copy the result.

Use cases

Insert a hashtag manually into copy when an editor does not auto-format typed text.
Type # on a keyboard layout where it is not Shift+3, such as UK or Mac UK.
Copy the fullwidth ＃ for CJK typesetting alongside wide characters.
Insert the HTML entity &num; when a raw # gets stripped or misread by a text filter.
Escape # as %23 in a URL so it is treated as literal text instead of a fragment marker.
Look up the Alt code for pasting into legacy software that blocks copy-paste.
Tell the hashtag apart from the musical sharp sign when labeling or searching text.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu