HTML ASCII Reference Manual

ASCII is the first character set (encoding standard) used between computers on the Internet.

ISO-8859-1 (default in HTML 4.01) and UTF-8 (default in HTML5) are both built on ASCII.

ASCII character set

ASCII stands for 'American Standard Code for Information Interchange'.

It was designed in the early 1960s and is the standard character set for computers and electronic devices.

ASCII is a 7-bit character set containing 128 characters.

It includes numbers from 0-9, uppercase and lowercase English letters from A to Z, and some special characters.

The character sets used in modern computers and HTML, as well as on the Internet, are all based on ASCII.

The following table lists 128 ASCII characters and their equivalent numbers.

character	number	description
	0 - 31	Control characters (see below)
	32	space
!	33	exclamation mark
"	34	quotation mark
#	35	Number sign
Number sign	$	36
Dollar sign	%	37
Percent sign	&	38
Ampersand	'	39
Apostrophe	(	40
Left parenthesis	)	41
Right parenthesis	*	42
Asterisk	+	43
Plus sign	,	Comma
-	45	Hyphen
.	46	Period
/	47	Slash
0	48	Digit 0
1	49	Digit 1
2	50	Digit 2
3	51	Digit 3
4	52	Digit 4
5	53	Digit 5
6	54	Digit 6
7	55	Digit 7
8	56	Digit 8
9	57	Digit 9
:	58	Colon
;	59	Semicolon
<	60	Less-than
=	61	Equals-to
>	62	Greater-than
?	63	Question mark
@	64	At sign
A	65	Uppercase A
B	66	Uppercase B
C	67	Uppercase C
D	68	Uppercase D
E	69	Uppercase E
F	70	Uppercase F
G	71	Uppercase G
H	72	Uppercase H
I	73	Uppercase I
J	74	Uppercase J
K	75	Uppercase K
L	76	Uppercase L
M	77	Uppercase M
N	78	Uppercase N
O	79	Uppercase O
P	80	Uppercase P
Q	81	Uppercase Q
R	82	Uppercase R
S	83	Uppercase S
T	84	Uppercase T
U	85	Uppercase U
V	86	Uppercase V
W	87	Uppercase W
X	88	Uppercase X
Y	89	uppercase Y
Z	90	uppercase Z
[	91	left square bracket
\	92	backslash
]	93	right square bracket
^	94	caret
_	95	underscore
`	96	grave accent
a	97	lowercase a
b	98	lowercase b
c	99	lowercase c
d	100	lowercase d
e	101	lowercase e
f	102	lowercase f
g	103	lowercase g
h	104	lowercase h
i	105	lowercase i
j	106	lowercase j
k	107	lowercase k
l	108	lowercase l
m	109	lowercase m
n	110	lowercase n
o	111	lowercase o
p	112	lowercase p
q	113	lowercase q
r	114	lowercase r
s	115	lowercase s
t	116	lowercase t
u	117	lowercase u
v	118	lowercase v
w	119	lowercase w
x	120	lowercase x
y	121	lowercase y
z	122	lowercase z
{	123	left curly brace
\|	124	vertical bar
}	125	right curly brace
~	126	tilde

ASCII control characters (range 00-31, plus 127) are intended to control hardware devices.

control characters (excluding horizontal tab, newline, and carriage return) are irrelevant to HTML documents.