_

Technical information

Symbol_
NameFullwidth low line
Unicode numberU+FF3F
CategoryFullwidth ASCII variants
DescriptionThe Unicode character _, or U+FF3F, is known as the "Fullwidth Low Line". It belongs to the "Halfwidth and Fullwidth Forms" block and falls under the "Punctuation, Other" category in the Unicode standard. This character is a fullwidth version of the common low line or underscore (_) character. This means that it takes up more horizontal space than the regular underscore, which is designed to match the width of East Asian characters. It's used in the same way as a regular underscore, often to create a space in text where spaces are not permitted.

Encoding

HTML Entity_
HTML Entity (hex)_
URL Escape Code%EF%BC%BF
UTF-8 (hex)0xEF 0xBC 0xBF
UTF-8 (binary)11101111:10111100:10111111
UTF-160xFF3F
UTF-320x0000FF3F

Source Code

C, C++, and Java"\uFF3F"
CSS Code\FF3F
JavaScript"\uFF3F"
Perl\x{FF3F}
Python 2u"\uFF3F"
Python 3\uFF3F
Ruby\u{FF3F}

Preview

This Unicode character looks like this _ in sentence and in bold like this _ and in italic like this _.

Font size:

_
12px
_
16px
_
20px
_
28px
_
36px
_
48px
_
72px

CSS Property: font-weight

_
100
_
200
_
300
_
400
_
500
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600
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700
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800
_
900

HTML Forms and Input

input
disabled input
_
input-group
select
button
button

Code examples in HTML and CSS

<span>&#65343;</span>

            
span {
    content: "\FF3F";
}

The symbol in different fonts

_
-apple-system
_
Apple Color Emoji
_
Arial
_
BlinkMacSystemFont
_
Courier New
_
Georgia
_
Droid Sans
_
Helvetica
_
Noto Sans
_
Oxygen
_
Roboto
_
"Segoe UI"
_
sans-serif
_
Segoe UI Emoji
_
Segoe UI Symbol
_
system-ui
_
Times New Roman
_
Ubuntu
_
Verdana

References