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Look Up ASCII Character Codes

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Ascii Table for quick browser-based work with focused input and copy-ready output.

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Showing 128 of 128 entries.

Dec	Hex	Oct	Binary	Char	Description	HTML
0	00	000	00000000	NUL	Null (\0)
1	01	001	00000001	SOH	Start of Heading
2	02	002	00000010	STX	Start of Text
3	03	003	00000011	ETX	End of Text
4	04	004	00000100	EOT	End of Transmission
5	05	005	00000101	ENQ	Enquiry
6	06	006	00000110	ACK	Acknowledge
7	07	007	00000111	BEL	Bell
8	08	010	00001000	BS	Backspace
9	09	011	00001001	HT	Horizontal Tab (\t)
10	0A	012	00001010	LF	Line Feed (newline) (\n)
11	0B	013	00001011	VT	Vertical Tab
12	0C	014	00001100	FF	Form Feed
13	0D	015	00001101	CR	Carriage Return (\r)
14	0E	016	00001110	SO	Shift Out
15	0F	017	00001111	SI	Shift In
16	10	020	00010000	DLE	Data Link Escape
17	11	021	00010001	DC1	Device Control 1 (XON)
18	12	022	00010010	DC2	Device Control 2
19	13	023	00010011	DC3	Device Control 3 (XOFF)
20	14	024	00010100	DC4	Device Control 4
21	15	025	00010101	NAK	Negative Acknowledge
22	16	026	00010110	SYN	Synchronous Idle
23	17	027	00010111	ETB	End of Transmission Block
24	18	030	00011000	CAN	Cancel
25	19	031	00011001	EM	End of Medium
26	1A	032	00011010	SUB	Substitute
27	1B	033	00011011	ESC	Escape (\e, \x1B)
28	1C	034	00011100	FS	File Separator
29	1D	035	00011101	GS	Group Separator
30	1E	036	00011110	RS	Record Separator
31	1F	037	00011111	US	Unit Separator
32	20	040	00100000	SP	Space
33	21	041	00100001	!	Exclamation mark	!
34	22	042	00100010	"	Double quote	"
35	23	043	00100011	#	Number sign (hash)	#
36	24	044	00100100	$	Dollar sign	$
37	25	045	00100101	%	Percent sign	%
38	26	046	00100110	&	Ampersand	&
39	27	047	00100111	'	Apostrophe (single quote)	'
40	28	050	00101000	(	Left parenthesis	(
41	29	051	00101001	)	Right parenthesis	)
42	2A	052	00101010	*	Asterisk	*
43	2B	053	00101011	+	Plus sign	+
44	2C	054	00101100	,	Comma	,
45	2D	055	00101101	-	Hyphen-minus	-
46	2E	056	00101110	.	Period (full stop)	.
47	2F	057	00101111	/	Slash	/
48	30	060	00110000	0	Digit 0	0
49	31	061	00110001	1	Digit 1	1
50	32	062	00110010	2	Digit 2	2
51	33	063	00110011	3	Digit 3	3
52	34	064	00110100	4	Digit 4	4
53	35	065	00110101	5	Digit 5	5
54	36	066	00110110	6	Digit 6	6
55	37	067	00110111	7	Digit 7	7
56	38	070	00111000	8	Digit 8	8
57	39	071	00111001	9	Digit 9	9
58	3A	072	00111010	:	Colon	:
59	3B	073	00111011	;	Semicolon	;
60	3C	074	00111100	<	Less-than sign	<
61	3D	075	00111101	=	Equals sign	=
62	3E	076	00111110	>	Greater-than sign	>
63	3F	077	00111111	?	Question mark	?
64	40	100	01000000	@	At sign	@
65	41	101	01000001	A	Uppercase letter A	A
66	42	102	01000010	B	Uppercase letter B	B
67	43	103	01000011	C	Uppercase letter C	C
68	44	104	01000100	D	Uppercase letter D	D
69	45	105	01000101	E	Uppercase letter E	E
70	46	106	01000110	F	Uppercase letter F	F
71	47	107	01000111	G	Uppercase letter G	G
72	48	110	01001000	H	Uppercase letter H	H
73	49	111	01001001	I	Uppercase letter I	I
74	4A	112	01001010	J	Uppercase letter J	J
75	4B	113	01001011	K	Uppercase letter K	K
76	4C	114	01001100	L	Uppercase letter L	L
77	4D	115	01001101	M	Uppercase letter M	M
78	4E	116	01001110	N	Uppercase letter N	N
79	4F	117	01001111	O	Uppercase letter O	O
80	50	120	01010000	P	Uppercase letter P	P
81	51	121	01010001	Q	Uppercase letter Q	Q
82	52	122	01010010	R	Uppercase letter R	R
83	53	123	01010011	S	Uppercase letter S	S
84	54	124	01010100	T	Uppercase letter T	T
85	55	125	01010101	U	Uppercase letter U	U
86	56	126	01010110	V	Uppercase letter V	V
87	57	127	01010111	W	Uppercase letter W	W
88	58	130	01011000	X	Uppercase letter X	X
89	59	131	01011001	Y	Uppercase letter Y	Y
90	5A	132	01011010	Z	Uppercase letter Z	Z
91	5B	133	01011011	[	Left square bracket	[
92	5C	134	01011100	\	Backslash	\
93	5D	135	01011101	]	Right square bracket	]
94	5E	136	01011110	^	Caret	^
95	5F	137	01011111	_	Underscore	_
96	60	140	01100000	`	Grave accent (backtick)	`
97	61	141	01100001	a	Lowercase letter a	a
98	62	142	01100010	b	Lowercase letter b	b
99	63	143	01100011	c	Lowercase letter c	c
100	64	144	01100100	d	Lowercase letter d	d
101	65	145	01100101	e	Lowercase letter e	e
102	66	146	01100110	f	Lowercase letter f	f
103	67	147	01100111	g	Lowercase letter g	g
104	68	150	01101000	h	Lowercase letter h	h
105	69	151	01101001	i	Lowercase letter i	i
106	6A	152	01101010	j	Lowercase letter j	j
107	6B	153	01101011	k	Lowercase letter k	k
108	6C	154	01101100	l	Lowercase letter l	l
109	6D	155	01101101	m	Lowercase letter m	m
110	6E	156	01101110	n	Lowercase letter n	n
111	6F	157	01101111	o	Lowercase letter o	o
112	70	160	01110000	p	Lowercase letter p	p
113	71	161	01110001	q	Lowercase letter q	q
114	72	162	01110010	r	Lowercase letter r	r
115	73	163	01110011	s	Lowercase letter s	s
116	74	164	01110100	t	Lowercase letter t	t
117	75	165	01110101	u	Lowercase letter u	u
118	76	166	01110110	v	Lowercase letter v	v
119	77	167	01110111	w	Lowercase letter w	w
120	78	170	01111000	x	Lowercase letter x	x
121	79	171	01111001	y	Lowercase letter y	y
122	7A	172	01111010	z	Lowercase letter z	z
123	7B	173	01111011	{	Left curly brace	{
124	7C	174	01111100	\|	Vertical bar (pipe)	\|
125	7D	175	01111101	}	Right curly brace	}
126	7E	176	01111110	~	Tilde	~
127	7F	177	01111111	DEL	Delete

Codes 0–31 and 127 are non-printing control characters (33 total). ASCII is a 7-bit code; values 128–255 belong to extended encodings such as Latin-1 or Windows-1252, and to UTF-8 multi-byte sequences.

Direct Answer

Use the ASCII Table when you need the numeric code for a character in decimal, hexadecimal, octal, or binary, or need to identify what a control character like 10 or 13 represents.

Printable vs Control Characters

The ASCII standard reserves its lowest codes for control characters, which have no visible glyph and instead trigger an action or represent formatting rather than a symbol.

Codes 0 through 31 are control characters, none of which are visibly printable on their own.
Code 0 is null, code 9 is tab, code 10 is line feed (LF), and code 13 is carriage return (CR).
Codes 32 through 126 are the standard printable characters: letters, digits, punctuation, and space.
Code 127 (DEL) is also non-printable, sitting just past the printable range as a legacy delete character.

Standard vs Extended ASCII

Original ASCII only defines 128 characters, but the eighth bit of a byte allows for another 128 values that were never standardized the same way across systems.

Standard, 7-bit ASCII covers codes 0-127 and is identical across virtually every system.
Extended ASCII covers codes 128-255, but its meaning depends entirely on the code page in use, so the same byte value can represent different characters on different systems.
Unicode was created partly to solve this fragmentation, assigning a single consistent code point to every character across all languages and symbols.
For any character outside the basic 128 ASCII codes, a Unicode lookup is more reliable than assuming a specific extended ASCII code page.

How to Use Ascii Table

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Enter or paste your input in the field provided.
Review the result shown on the page, then copy or download it.

Reference

Feature	Details
Purpose	Complete the utility task shown on this page.
Input	The value or content requested by the tool.
Result	The generated or processed output shown on the page.
Best for	Quick browser-based utility work.
Category	Developer Tools
Works on	Desktop, tablet, and mobile browsers

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Frequently Asked Questions

What is the ASCII code for the letter A?

Uppercase A is decimal 65 (hex 41, octal 101). Uppercase letters run consecutively from A (65) through Z (90) in that order.

What's the difference between decimal, hex, and octal representation of a character code?

They're just three different number bases representing the exact same underlying value: decimal is base 10, hexadecimal is base 16, and octal is base 8. The character A is 65 in decimal, 41 in hex, and 101 in octal, all referring to the identical code point.

What is a control character and why doesn't it print visibly?

Control characters are the ASCII codes 0 through 31 (plus 127), reserved for signaling actions like line breaks, tabs, and device control rather than representing a visible symbol. They predate modern text rendering and were originally meant to control physical teletype and printer hardware directly.

What does character code 10 mean? What about 13?

Code 10 is line feed (LF), which moves the cursor down a line, and code 13 is carriage return (CR), which moves the cursor back to the start of the line. Unix-based systems use LF alone for line endings, while Windows uses both together as CRLF, which is why files sometimes display line-ending inconsistencies when moved between operating systems.

What is code 0 (null) used for?

Null (code 0) traditionally marks the end of a string in many programming languages, particularly C, and is used as a terminator rather than a visible character. Encountering an unexpected null byte in text data is a common sign of binary data being misread as text.

What is code 9 (tab)?

Tab is the horizontal whitespace control character, code 9, used to align text into columns. Unlike a space, its visual width can vary depending on the tab-stop settings of the terminal or editor displaying it.

What is code 127 (DEL)?

DEL is a legacy control character originally used on paper tape systems to mark a character as deleted by punching out all the holes in that position. It falls just outside the standard printable range, sitting right after code 126.

What's the difference between standard ASCII (0-127) and extended ASCII (128-255)?

Standard ASCII uses only 7 bits and is consistently defined across virtually all systems for codes 0 through 127. Extended ASCII uses the 8th bit to add codes 128 through 255, but those values were never standardized the same way everywhere, so the same byte can represent different characters depending on the code page in use.

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