ASCII Table

ASCII stands for American Standard Code for Information Interchange. It was designed in the early 60's, as a standard character set for computers and electronic devices. It is a 7-bit character set containing 128 characters. Below is the ASCII character table, including descriptions of the first 32 characters. ASCII was originally designed for use with teletypes, and so the descriptions are somewhat obscure and their use is frequently not as intended.

ASCII Printable Characters

DEC	CHAR	Description	HEX	Entity Number	Example
0-31		Control characters (see table below)	0-1F
32		Space	20		Example
33	!	Exclamation mark	21	!	Example
34	"	Quotation mark	22	"	Example
35	#	Number sign	23	#	Example
36	$	Dollar sign	24	$	Example
37	%	Percent sign	25	%	Example
38	&	Ampersand	26	&	Example
39	'	Apostrophe	27	'	Example
40	(	Open parenthesis	28	(	Example
41	)	Close parenthesis	29	)	Example
42	*	Asterisk	2A	*	Example
43	+	Plus	2B	+	Example
44	,	Comma	2C	,	Example
45	-	Hyphen	2D	-	Example
46	.	Period	2E	.	Example
47	/	Slash	2F	/	Example
48	0	Digit 0	30	0	Example
49	1	Digit 1	31	1	Example
50	2	Digit 2	32	2	Example
51	3	Digit 3	33	3	Example
52	4	Digit 4	34	4	Example
53	5	Digit 5	35	5	Example
54	6	Digit 6	36	6	Example
55	7	Digit 7	37	7	Example
56	8	Digit 8	38	8	Example
57	9	Digit 9	39	9	Example
58	:	Colon	3A	:	Example
59	;	Semicolon	3B	;	Example
60	<	Less than	3C	<	Example
61	=	Equal to	3D	=	Example
62	>	Greater than	3E	>	Example
63	?	Question mark	3F	?	Example
64	@	At sign	40	@	Example
65	A	Uppercase A	41	A	Example
66	B	Uppercase B	42	B	Example
67	C	Uppercase C	43	C	Example
68	D	Uppercase D	44	D	Example
69	E	Uppercase E	45	E	Example
70	F	Uppercase F	46	F	Example
71	G	Uppercase G	47	G	Example
72	H	Uppercase H	48	H	Example
73	I	Uppercase I	49	I	Example
74	J	Uppercase J	4A	J	Example
75	K	Uppercase K	4B	K	Example
76	L	Uppercase L	4C	L	Example
77	M	Uppercase M	4D	M	Example
78	N	Uppercase N	4E	N	Example
79	O	Uppercase O	4F	O	Example
80	P	Uppercase P	50	P	Example
81	Q	Uppercase Q	51	Q	Example
82	R	Uppercase R	52	R	Example
83	S	Uppercase S	53	S	Example
84	T	Uppercase T	54	T	Example
85	U	Uppercase U	55	U	Example
86	V	Uppercase V	56	V	Example
87	W	Uppercase W	57	W	Example
88	X	Uppercase X	58	X	Example
89	Y	Uppercase Y	59	Y	Example
90	Z	Uppercase Z	5A	Z	Example
91	[	Opening square bracket	5B	[	Example
92	\	Backslash	5C	\	Example
93	]	Closing square bracket	5D	]	Example
94	^	Caret	5E	^	Example
95	_	Underscore	5F	_	Example
96	`	Grave accent	60	`	Example
97	a	Lowercase a	61	a	Example
98	b	Lowercase b	62	b	Example
99	c	Lowercase c	63	c	Example
100	d	Lowercase d	64	d	Example
101	e	Lowercase e	65	e	Example
102	f	Lowercase f	66	f	Example
103	g	Lowercase g	67	g	Example
104	h	Lowercase h	68	h	Example
105	i	Lowercase i	69	i	Example
106	j	Lowercase j	6A	j	Example
107	k	Lowercase k	6B	k	Example
108	l	Lowercase l	6C	l	Example
109	m	Lowercase m	6D	m	Example
110	n	Lowercase n	6E	n	Example
111	o	Lowercase o	6F	o	Example
112	p	Lowercase p	70	p	Example
113	q	Lowercase q	71	q	Example
114	r	Lowercase r	72	r	Example
115	s	Lowercase s	73	s	Example
116	t	Lowercase t	74	t	Example
117	u	Lowercase u	75	u	Example
118	v	Lowercase v	76	v	Example
119	w	Lowercase w	77	w	Example
120	x	Lowercase x	78	x	Example
121	y	Lowercase y	79	y	Example
122	z	Lowercase z	7A	z	Example
123	{	Opening curly brace	7B	{	Example
124	\|	Vertical bar	7C	\|	Example
125	}	Closing curly brace	7D	}	Example
126	~	Tilde	7E	~	Example

ASCII Device Control Characters

The ASCII control characters (range 00-31, plus 127) were designed to control hardware devices.

DEC	CHAR	Description	HEX
0	NUL	'\0', Null character	0
1	SOH	Start of heading	1
2	STX	Start of text	2
3	ETX	End of text	3
4	EOT	End of transmission	4
5	ENQ	Enquiry	5
6	ACK	Acknowledge	6
7	BEL	'\a', Bell	7
8	BS	'\b', Backspace	8
9	HT	'\t', Horizontal tab	9
10	LF	'\n', New line	0A
11	VT	'\v', Vertical tab	0B
12	FF	'\f', Form feed	0C
13	CR	'\r', Carriage return	0D
14	SO	Shift out	0E
15	SI	Shift in	0F
16	DLE	Data link escape	10
17	DC1	Device control 1	11
18	DC2	Device control 2	12
19	DC3	Device control 3	13
20	DC4	Device control 4	14
21	NAK	Negative acknowledge	15
22	SYN	Synchronous idle	16
23	ETB	End of transmission block	17
24	CAN	Cancel	18
25	EM	End of medium	19
26	SUB	Substitute	1A
27	ESC	Escape	1B
28	FS	File separator	1C
29	GS	Group separator	1D
30	RS	Record separator	1E
31	US	Unit separator	1F
127	DEL	Delete	7F