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ASCII Table Reference

Every ASCII character 0–127 with dec, hex, octal, binary and description — instantly searchable.

Category

128 of 128 rows

Dec	Hex	Oct	Binary	Char	Description
0	0x00	000	00000000	·	NUL — Null
1	0x01	001	00000001	·	SOH — Start of Heading
2	0x02	002	00000010	·	STX — Start of Text
3	0x03	003	00000011	·	ETX — End of Text
4	0x04	004	00000100	·	EOT — End of Transmission
5	0x05	005	00000101	·	ENQ — Enquiry
6	0x06	006	00000110	·	ACK — Acknowledge
7	0x07	007	00000111	·	BEL — Bell
8	0x08	010	00001000	·	BS — Backspace
9	0x09	011	00001001	·	HT — Horizontal Tab
10	0x0A	012	00001010	·	LF — Line Feed
11	0x0B	013	00001011	·	VT — Vertical Tab
12	0x0C	014	00001100	·	FF — Form Feed
13	0x0D	015	00001101	·	CR — Carriage Return
14	0x0E	016	00001110	·	SO — Shift Out
15	0x0F	017	00001111	·	SI — Shift In
16	0x10	020	00010000	·	DLE — Data Link Escape
17	0x11	021	00010001	·	DC1 — Device Control 1 (XON)
18	0x12	022	00010010	·	DC2 — Device Control 2
19	0x13	023	00010011	·	DC3 — Device Control 3 (XOFF)
20	0x14	024	00010100	·	DC4 — Device Control 4
21	0x15	025	00010101	·	NAK — Negative Acknowledge
22	0x16	026	00010110	·	SYN — Synchronous Idle
23	0x17	027	00010111	·	ETB — End of Transmission Block
24	0x18	030	00011000	·	CAN — Cancel
25	0x19	031	00011001	·	EM — End of Medium
26	0x1A	032	00011010	·	SUB — Substitute
27	0x1B	033	00011011	·	ESC — Escape
28	0x1C	034	00011100	·	FS — File Separator
29	0x1D	035	00011101	·	GS — Group Separator
30	0x1E	036	00011110	·	RS — Record Separator
31	0x1F	037	00011111	·	US — Unit Separator
32	0x20	040	00100000	SP	SP — Space
33	0x21	041	00100001	!	! — Exclamation Mark
34	0x22	042	00100010	"	" — Double Quote
35	0x23	043	00100011	#	# — Hash / Number Sign
36	0x24	044	00100100	$	$ — Dollar Sign
37	0x25	045	00100101	%	% — Percent Sign
38	0x26	046	00100110	&	& — Ampersand
39	0x27	047	00100111	'	' — Single Quote
40	0x28	050	00101000	(	( — Left Parenthesis
41	0x29	051	00101001	)	) — Right Parenthesis
42	0x2A	052	00101010	*	* — Asterisk
43	0x2B	053	00101011	+	+ — Plus Sign
44	0x2C	054	00101100	,	, — Comma
45	0x2D	055	00101101	-	- — Hyphen / Minus
46	0x2E	056	00101110	.	. — Period / Full Stop
47	0x2F	057	00101111	/	/ — Forward Slash
48	0x30	060	00110000	0	0 — Digit Zero
49	0x31	061	00110001	1	1 — Digit One
50	0x32	062	00110010	2	2 — Digit Two
51	0x33	063	00110011	3	3 — Digit Three
52	0x34	064	00110100	4	4 — Digit Four
53	0x35	065	00110101	5	5 — Digit Five
54	0x36	066	00110110	6	6 — Digit Six
55	0x37	067	00110111	7	7 — Digit Seven
56	0x38	070	00111000	8	8 — Digit Eight
57	0x39	071	00111001	9	9 — Digit Nine
58	0x3A	072	00111010	:	: — Colon
59	0x3B	073	00111011	;	; — Semicolon
60	0x3C	074	00111100	<	< — Less-Than Sign
61	0x3D	075	00111101	=	= — Equals Sign
62	0x3E	076	00111110	>	> — Greater-Than Sign
63	0x3F	077	00111111	?	? — Question Mark
64	0x40	100	01000000	@	@ — At Sign
65	0x41	101	01000001	A	A — Latin Capital A
66	0x42	102	01000010	B	B — Latin Capital B
67	0x43	103	01000011	C	C — Latin Capital C
68	0x44	104	01000100	D	D — Latin Capital D
69	0x45	105	01000101	E	E — Latin Capital E
70	0x46	106	01000110	F	F — Latin Capital F
71	0x47	107	01000111	G	G — Latin Capital G
72	0x48	110	01001000	H	H — Latin Capital H
73	0x49	111	01001001	I	I — Latin Capital I
74	0x4A	112	01001010	J	J — Latin Capital J
75	0x4B	113	01001011	K	K — Latin Capital K
76	0x4C	114	01001100	L	L — Latin Capital L
77	0x4D	115	01001101	M	M — Latin Capital M
78	0x4E	116	01001110	N	N — Latin Capital N
79	0x4F	117	01001111	O	O — Latin Capital O
80	0x50	120	01010000	P	P — Latin Capital P
81	0x51	121	01010001	Q	Q — Latin Capital Q
82	0x52	122	01010010	R	R — Latin Capital R
83	0x53	123	01010011	S	S — Latin Capital S
84	0x54	124	01010100	T	T — Latin Capital T
85	0x55	125	01010101	U	U — Latin Capital U
86	0x56	126	01010110	V	V — Latin Capital V
87	0x57	127	01010111	W	W — Latin Capital W
88	0x58	130	01011000	X	X — Latin Capital X
89	0x59	131	01011001	Y	Y — Latin Capital Y
90	0x5A	132	01011010	Z	Z — Latin Capital Z
91	0x5B	133	01011011	[	[ — Left Square Bracket
92	0x5C	134	01011100	\	\ — Backslash
93	0x5D	135	01011101	]	] — Right Square Bracket
94	0x5E	136	01011110	^	^ — Caret
95	0x5F	137	01011111	_	_ — Underscore
96	0x60	140	01100000	`	` — Grave Accent
97	0x61	141	01100001	a	a — Latin Small a
98	0x62	142	01100010	b	b — Latin Small b
99	0x63	143	01100011	c	c — Latin Small c
100	0x64	144	01100100	d	d — Latin Small d
101	0x65	145	01100101	e	e — Latin Small e
102	0x66	146	01100110	f	f — Latin Small f
103	0x67	147	01100111	g	g — Latin Small g
104	0x68	150	01101000	h	h — Latin Small h
105	0x69	151	01101001	i	i — Latin Small i
106	0x6A	152	01101010	j	j — Latin Small j
107	0x6B	153	01101011	k	k — Latin Small k
108	0x6C	154	01101100	l	l — Latin Small l
109	0x6D	155	01101101	m	m — Latin Small m
110	0x6E	156	01101110	n	n — Latin Small n
111	0x6F	157	01101111	o	o — Latin Small o
112	0x70	160	01110000	p	p — Latin Small p
113	0x71	161	01110001	q	q — Latin Small q
114	0x72	162	01110010	r	r — Latin Small r
115	0x73	163	01110011	s	s — Latin Small s
116	0x74	164	01110100	t	t — Latin Small t
117	0x75	165	01110101	u	u — Latin Small u
118	0x76	166	01110110	v	v — Latin Small v
119	0x77	167	01110111	w	w — Latin Small w
120	0x78	170	01111000	x	x — Latin Small x
121	0x79	171	01111001	y	y — Latin Small y
122	0x7A	172	01111010	z	z — Latin Small z
123	0x7B	173	01111011	{	{ — Left Curly Brace
124	0x7C	174	01111100	\|	\| — Vertical Bar / Pipe
125	0x7D	175	01111101	}	} — Right Curly Brace
126	0x7E	176	01111110	~	~ — Tilde
127	0x7F	177	01111111	DEL	DEL — Delete

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About

The ASCII Table Reference lists all 128 ASCII characters (codes 0–127) alongside their decimal, hexadecimal, octal, binary and Unicode representations. Whether you need to decode a control character, look up the hex value of a symbol, or check the binary code for a letter, this searchable ASCII chart gives you instant answers — no manuals required.

FAQ

What is ASCII and why does it only go to 127?+

ASCII (American Standard Code for Information Interchange) uses 7 bits to encode 128 characters (0–127). The first 32 codes plus 127 are non-printable control characters; codes 32–126 cover the familiar printable symbols including letters, digits and punctuation. Extended encodings like Latin-1 and UTF-8 build on top of this 7-bit foundation.

How do I search for a specific character or code?+

Type any of the following into the search box: a decimal number (e.g. 65), a hex value with or without the 0x prefix (e.g. 0x41 or 41), an octal number (e.g. 101), the character itself (e.g. A), or a keyword from the description (e.g. carriage return). The table filters live as you type.

What are ASCII control characters?+

Control characters are the first 32 ASCII codes (0–31) plus DEL (127). They do not represent printable glyphs; instead they signal actions like Line Feed (LF, 10), Carriage Return (CR, 13), Tab (HT, 9), Escape (ESC, 27), and Null (NUL, 0). They are widely used in terminal emulation, serial communication, and file formats.

How do I use this table for HTML special characters?+

Click any row to open the Character Detail panel, which shows the HTML entity for that code (e.g. A for 'A' or  for a hex entity). You can also copy any row or the entire filtered table as plain text using the copy buttons.

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