ASCII Table

Complete ASCII character table with decimal, hex, octal, and HTML entity values.

Instant ASCII Character & Code Reference

An interactive reference for standard American Standard Code for Information Interchange (ASCII) character codes. Analyze any text string, capture keypresses, filter codes by category, or click any table cell to copy codes to your clipboard instantly.

Interactive Character Analyzer

Type a string to decode character representations, or enable keypress mode to inspect any key you press.

Quick Presets:

Decoded Results (Up to 8 characters)

Click any card value to copy

Pos 1Printable Character

ASCII Reference Table

Search standard English character codes or browse by classification categories.

Dec	Hex	Oct	Char	Name / Description	HTML Entity
0	0x00	000	^@	NUL (Null)
1	0x01	001	^A	SOH (Start of Heading)
2	0x02	002	^B	STX (Start of Text)
3	0x03	003	^C	ETX (End of Text)
4	0x04	004	^D	EOT (End of Transmission)
5	0x05	005	^E	ENQ (Enquiry)
6	0x06	006	^F	ACK (Acknowledge)
7	0x07	007	^G	BEL (Bell)
8	0x08	010	^H	BS (Backspace)
9	0x09	011	^I	TAB (Horizontal Tab)
10	0x0A	012	^J	LF (Line Feed)
11	0x0B	013	^K	VT (Vertical Tab)
12	0x0C	014	^L	FF (Form Feed)
13	0x0D	015	^M	CR (Carriage Return)
14	0x0E	016	^N	SO (Shift Out)
15	0x0F	017	^O	SI (Shift In)
16	0x10	020	^P	DLE (Data Link Escape)
17	0x11	021	^Q	DC1 (Device Control 1)
18	0x12	022	^R	DC2 (Device Control 2)
19	0x13	023	^S	DC3 (Device Control 3)
20	0x14	024	^T	DC4 (Device Control 4)
21	0x15	025	^U	NAK (Negative Acknowledge)
22	0x16	026	^V	SYN (Synchronous Idle)
23	0x17	027	^W	ETB (End of Transmission Block)
24	0x18	030	^X	CAN (Cancel)
25	0x19	031	^Y	EM (End of Medium)
26	0x1A	032	^Z	SUB (Substitute)
27	0x1B	033	^[	ESC (Escape)
28	0x1C	034	^\	FS (File Separator)
29	0x1D	035	^]	GS (Group Separator)
30	0x1E	036	^^	RS (Record Separator)
31	0x1F	037	^_	US (Unit Separator)
32	0x20	040	␣	Space
33	0x21	041	!	Printable Character	!
34	0x22	042	"	Printable Character	"
35	0x23	043	#	Printable Character	#
36	0x24	044	$	Printable Character	$
37	0x25	045	%	Printable Character	%
38	0x26	046	&	Printable Character	&
39	0x27	047	'	Printable Character	'
40	0x28	050	(	Printable Character	(
41	0x29	051	)	Printable Character	)
42	0x2A	052	*	Printable Character	*
43	0x2B	053	+	Printable Character	+
44	0x2C	054	,	Printable Character	,
45	0x2D	055	-	Printable Character	-
46	0x2E	056	.	Printable Character	.
47	0x2F	057	/	Printable Character	/
48	0x30	060	0	Printable Character	0
49	0x31	061	1	Printable Character	1
50	0x32	062	2	Printable Character	2
51	0x33	063	3	Printable Character	3
52	0x34	064	4	Printable Character	4
53	0x35	065	5	Printable Character	5
54	0x36	066	6	Printable Character	6
55	0x37	067	7	Printable Character	7
56	0x38	070	8	Printable Character	8
57	0x39	071	9	Printable Character	9
58	0x3A	072	:	Printable Character	:
59	0x3B	073	;	Printable Character	;
60	0x3C	074	<	Printable Character	<
61	0x3D	075	=	Printable Character	=
62	0x3E	076	>	Printable Character	>
63	0x3F	077	?	Printable Character	?
64	0x40	100	@	Printable Character	@
65	0x41	101	A	Printable Character	A
66	0x42	102	B	Printable Character	B
67	0x43	103	C	Printable Character	C
68	0x44	104	D	Printable Character	D
69	0x45	105	E	Printable Character	E
70	0x46	106	F	Printable Character	F
71	0x47	107	G	Printable Character	G
72	0x48	110	H	Printable Character	H
73	0x49	111	I	Printable Character	I
74	0x4A	112	J	Printable Character	J
75	0x4B	113	K	Printable Character	K
76	0x4C	114	L	Printable Character	L
77	0x4D	115	M	Printable Character	M
78	0x4E	116	N	Printable Character	N
79	0x4F	117	O	Printable Character	O
80	0x50	120	P	Printable Character	P
81	0x51	121	Q	Printable Character	Q
82	0x52	122	R	Printable Character	R
83	0x53	123	S	Printable Character	S
84	0x54	124	T	Printable Character	T
85	0x55	125	U	Printable Character	U
86	0x56	126	V	Printable Character	V
87	0x57	127	W	Printable Character	W
88	0x58	130	X	Printable Character	X
89	0x59	131	Y	Printable Character	Y
90	0x5A	132	Z	Printable Character	Z
91	0x5B	133	[	Printable Character	[
92	0x5C	134	\	Printable Character	\
93	0x5D	135	]	Printable Character	]
94	0x5E	136	^	Printable Character	^
95	0x5F	137	_	Printable Character	_
96	0x60	140	`	Printable Character	`
97	0x61	141	a	Printable Character	a
98	0x62	142	b	Printable Character	b
99	0x63	143	c	Printable Character	c
100	0x64	144	d	Printable Character	d
101	0x65	145	e	Printable Character	e
102	0x66	146	f	Printable Character	f
103	0x67	147	g	Printable Character	g
104	0x68	150	h	Printable Character	h
105	0x69	151	i	Printable Character	i
106	0x6A	152	j	Printable Character	j
107	0x6B	153	k	Printable Character	k
108	0x6C	154	l	Printable Character	l
109	0x6D	155	m	Printable Character	m
110	0x6E	156	n	Printable Character	n
111	0x6F	157	o	Printable Character	o
112	0x70	160	p	Printable Character	p
113	0x71	161	q	Printable Character	q
114	0x72	162	r	Printable Character	r
115	0x73	163	s	Printable Character	s
116	0x74	164	t	Printable Character	t
117	0x75	165	u	Printable Character	u
118	0x76	166	v	Printable Character	v
119	0x77	167	w	Printable Character	w
120	0x78	170	x	Printable Character	x
121	0x79	171	y	Printable Character	y
122	0x7A	172	z	Printable Character	z
123	0x7B	173	{	Printable Character	{
124	0x7C	174	\|	Printable Character	\|
125	0x7D	175	}	Printable Character	}
126	0x7E	176	~	Printable Character	~
127	0x7F	177		DEL (Delete)

What is ASCII Table?

The American Standard Code for Information Interchange (ASCII) is a character encoding standard for electronic communication. An ASCII table provides the decimal, hex, octal, and binary representations for standard English characters and control codes, essential for low-level programming.

Common Use Cases

Looking up character codes for C/C++, Rust, or assembly programming.
Debugging serial communication protocols and hardware interfaces.
Translating hex dumps, byte arrays, and escape sequences back into readable text.

Example: Input & Output

Sample Input

See the tool above for interactive examples.

Expected Output

The processed output will appear here instantly.

How to Use

Step 1: Use the above-the-fold Interactive Analyzer by typing a character or string to see live decoded results.
Step 2: Use the Table Controls to search or filter by decimal, hexadecimal, octal, or character values.
Step 3: Quickly narrow down characters by clicking any of the category filters (e.g., Numbers, Uppercase, Lowercase).
Step 4: Click on any specific cell value in the reference table to copy it instantly to your clipboard.

Frequently Asked Questions

Is this ASCII Table Reference free to use?

Yes, this tool is entirely free to use with no limits, no signup required, and zero data tracking.

Do I need an account to save my data?

No. Your lookups and character analysis are processed 100% locally in your web browser. We never transmit or store your inputs.

What is the ASCII value of Space, uppercase 'A', and lowercase 'a'?

The ASCII decimal value of Space is 32 (0x20 in Hex). Uppercase 'A' is 65 (0x41 in Hex), and lowercase 'a' is 97 (0x61 in Hex).

How do I read non-printable control characters in ASCII?

Control characters (ASCII values 0 to 31, and 127) represent commands like line feed (LF, value 10) or carriage return (CR, value 13) rather than visible text. They are represented in our table with standard control symbol equivalents (e.g., ^J for LF) and their formal acronym names.

What is the difference between ASCII and UTF-8?

ASCII is a 7-bit character encoding standard representing up to 128 standard English characters and control codes. UTF-8 is a modern variable-width character encoding standard that is backwards-compatible with ASCII but can represent over a million characters from all of the world's languages and symbol systems.

Privacy & Security

All data processing for the ASCII Table happens entirely on your local machine within your browser. No data is ever sent to our servers, ensuring your information remains private and secure. We believe in privacy by design, and our tools are built to be used without compromising your data.