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ASCII Reference Table

CharactersEasy

Searchable reference table mapping ASCII values to character, decimal, hex, and binary representations.

Alt+4

Searchable Reference

Dec	Hex	Binary	Char	Meaning
0	0x00	00000000	NUL	Null character
1	0x01	00000001	SOH	Start of Header
2	0x02	00000010	STX	Start of Text
3	0x03	00000011	ETX	End of Text
4	0x04	00000100	EOT	End of Transmission
5	0x05	00000101	ENQ	Enquiry
6	0x06	00000110	ACK	Acknowledge
7	0x07	00000111	BEL	Bell (speaker beep)
8	0x08	00001000	BS	Backspace
9	0x09	00001001	TAB	Horizontal Tab
10	0x0A	00001010	LF	Line Feed (newline)
11	0x0B	00001011	VT	Vertical Tab
12	0x0C	00001100	FF	Form Feed
13	0x0D	00001101	CR	Carriage Return
14	0x0E	00001110	SO	Shift Out
15	0x0F	00001111	SI	Shift In
16	0x10	00010000	DLE	Data Link Escape
17	0x11	00010001	DC1	Device Control 1
18	0x12	00010010	DC2	Device Control 2
19	0x13	00010011	DC3	Device Control 3
20	0x14	00010100	DC4	Device Control 4
21	0x15	00010101	NAK	Negative Acknowledge
22	0x16	00010110	SYN	Synchronous Idle
23	0x17	00010111	ETB	End of Trans. Block
24	0x18	00011000	CAN	Cancel
25	0x19	00011001	EM	End of Medium
26	0x1A	00011010	SUB	Substitute
27	0x1B	00011011	ESC	Escape
28	0x1C	00011100	FS	File Separator
29	0x1D	00011101	GS	Group Separator
30	0x1E	00011110	RS	Record Separator
31	0x1F	00011111	US	Unit Separator
32	0x20	00100000	SPC	Space bar
33	0x21	00100001	!	Printable character
34	0x22	00100010	"	Printable character
35	0x23	00100011	#	Printable character
36	0x24	00100100	$	Printable character
37	0x25	00100101	%	Printable character
38	0x26	00100110	&	Printable character
39	0x27	00100111	'	Printable character
40	0x28	00101000	(	Printable character
41	0x29	00101001	)	Printable character
42	0x2A	00101010	*	Printable character
43	0x2B	00101011	+	Printable character
44	0x2C	00101100	,	Printable character
45	0x2D	00101101	-	Printable character
46	0x2E	00101110	.	Printable character
47	0x2F	00101111	/	Printable character
48	0x30	00110000	0	Printable character
49	0x31	00110001	1	Printable character
50	0x32	00110010	2	Printable character
51	0x33	00110011	3	Printable character
52	0x34	00110100	4	Printable character
53	0x35	00110101	5	Printable character
54	0x36	00110110	6	Printable character
55	0x37	00110111	7	Printable character
56	0x38	00111000	8	Printable character
57	0x39	00111001	9	Printable character
58	0x3A	00111010	:	Printable character
59	0x3B	00111011	;	Printable character
60	0x3C	00111100	<	Printable character
61	0x3D	00111101	=	Printable character
62	0x3E	00111110	>	Printable character
63	0x3F	00111111	?	Printable character
64	0x40	01000000	@	Printable character
65	0x41	01000001	A	Printable character
66	0x42	01000010	B	Printable character
67	0x43	01000011	C	Printable character
68	0x44	01000100	D	Printable character
69	0x45	01000101	E	Printable character
70	0x46	01000110	F	Printable character
71	0x47	01000111	G	Printable character
72	0x48	01001000	H	Printable character
73	0x49	01001001	I	Printable character
74	0x4A	01001010	J	Printable character
75	0x4B	01001011	K	Printable character
76	0x4C	01001100	L	Printable character
77	0x4D	01001101	M	Printable character
78	0x4E	01001110	N	Printable character
79	0x4F	01001111	O	Printable character
80	0x50	01010000	P	Printable character
81	0x51	01010001	Q	Printable character
82	0x52	01010010	R	Printable character
83	0x53	01010011	S	Printable character
84	0x54	01010100	T	Printable character
85	0x55	01010101	U	Printable character
86	0x56	01010110	V	Printable character
87	0x57	01010111	W	Printable character
88	0x58	01011000	X	Printable character
89	0x59	01011001	Y	Printable character
90	0x5A	01011010	Z	Printable character
91	0x5B	01011011	[	Printable character
92	0x5C	01011100	\	Printable character
93	0x5D	01011101	]	Printable character
94	0x5E	01011110	^	Printable character
95	0x5F	01011111	_	Printable character
96	0x60	01100000	`	Printable character
97	0x61	01100001	a	Printable character
98	0x62	01100010	b	Printable character
99	0x63	01100011	c	Printable character
100	0x64	01100100	d	Printable character
101	0x65	01100101	e	Printable character
102	0x66	01100110	f	Printable character
103	0x67	01100111	g	Printable character
104	0x68	01101000	h	Printable character
105	0x69	01101001	i	Printable character
106	0x6A	01101010	j	Printable character
107	0x6B	01101011	k	Printable character
108	0x6C	01101100	l	Printable character
109	0x6D	01101101	m	Printable character
110	0x6E	01101110	n	Printable character
111	0x6F	01101111	o	Printable character
112	0x70	01110000	p	Printable character
113	0x71	01110001	q	Printable character
114	0x72	01110010	r	Printable character
115	0x73	01110011	s	Printable character
116	0x74	01110100	t	Printable character
117	0x75	01110101	u	Printable character
118	0x76	01110110	v	Printable character
119	0x77	01110111	w	Printable character
120	0x78	01111000	x	Printable character
121	0x79	01111001	y	Printable character
122	0x7A	01111010	z	Printable character
123	0x7B	01111011	{	Printable character
124	0x7C	01111100	\|	Printable character
125	0x7D	01111101	}	Printable character
126	0x7E	01111110	~	Printable character
127	0x7F	01111111	DEL	Delete key

Example Test Cases

Uppercase A representation

Input:65

Output:Char: A | Hex: 0x41

Load Case

Lowercase a representation

Input:97

Output:Char: a | Hex: 0x61

Load Case

Digit 0 representation

Input:48

Output:Char: 0 | Hex: 0x30

Load Case

Complexity Specs

Time ComplexityO(1)

Space ComplexityO(1)

Contest Notes & Bounds

Covers all 128 standard ASCII character representations (0 to 127).
Control characters like NUL, LF, and DEL are listed with descriptions.
Clicking a row copies the raw character value (or decimal code for controls).