ASCII Table Reference

Complete reference of all 128 ASCII characters (0–127) with decimal, hexadecimal, binary, and character values. Searchable and filterable by category.

Dec	Hex	Binary	Char	Description	Category
0	00	00000000	·	NUL (Null)	Control
1	01	00000001	·	SOH (Start of Heading)	Control
2	02	00000010	·	STX (Start of Text)	Control
3	03	00000011	·	ETX (End of Text)	Control
4	04	00000100	·	EOT (End of Transmission)	Control
5	05	00000101	·	ENQ (Enquiry)	Control
6	06	00000110	·	ACK (Acknowledgment)	Control
7	07	00000111	·	BEL (Bell)	Control
8	08	00001000	·	BS (Backspace)	Control
9	09	00001001	→	TAB (Horizontal Tab)	Control
10	0A	00001010	↓	LF (Line Feed)	Control
11	0B	00001011	·	VT (Vertical Tab)	Control
12	0C	00001100	·	FF (Form Feed)	Control
13	0D	00001101	←	CR (Carriage Return)	Control
14	0E	00001110	·	SO (Shift Out)	Control
15	0F	00001111	·	SI (Shift In)	Control
16	10	00010000	·	DLE (Data Link Escape)	Control
17	11	00010001	·	DC1 (Device Control 1)	Control
18	12	00010010	·	DC2 (Device Control 2)	Control
19	13	00010011	·	DC3 (Device Control 3)	Control
20	14	00010100	·	DC4 (Device Control 4)	Control
21	15	00010101	·	NAK (Negative Acknowledgment)	Control
22	16	00010110	·	SYN (Synchronous Idle)	Control
23	17	00010111	·	ETB (End of Transmission Block)	Control
24	18	00011000	·	CAN (Cancel)	Control
25	19	00011001	·	EM (End of Medium)	Control
26	1A	00011010	·	SUB (Substitute)	Control
27	1B	00011011	·	ESC (Escape)	Control
28	1C	00011100	·	FS (File Separator)	Control
29	1D	00011101	·	GS (Group Separator)	Control
30	1E	00011110	·	RS (Record Separator)	Control
31	1F	00011111	·	US (Unit Separator)	Control
32	20	00100000		Control character 32	Control
33	21	00100001	!	Exclamation mark	Punctuation
34	22	00100010	"	Double quote	Punctuation
35	23	00100011	#	Number sign	Punctuation
36	24	00100100	$	Dollar sign	Punctuation
37	25	00100101	%	Percent sign	Punctuation
38	26	00100110	&	Ampersand	Punctuation
39	27	00100111	'	Single quote	Punctuation
40	28	00101000	(	Left parenthesis	Punctuation
41	29	00101001	)	Right parenthesis	Punctuation
42	2A	00101010	*	Asterisk	Punctuation
43	2B	00101011	+	Plus sign	Punctuation
44	2C	00101100	,	Comma	Punctuation
45	2D	00101101	-	Minus sign	Punctuation
46	2E	00101110	.	Period	Punctuation
47	2F	00101111	/	Slash	Punctuation
48	30	00110000	0	Digit 0	Digits
49	31	00110001	1	Digit 1	Digits
50	32	00110010	2	Digit 2	Digits
51	33	00110011	3	Digit 3	Digits
52	34	00110100	4	Digit 4	Digits
53	35	00110101	5	Digit 5	Digits
54	36	00110110	6	Digit 6	Digits
55	37	00110111	7	Digit 7	Digits
56	38	00111000	8	Digit 8	Digits
57	39	00111001	9	Digit 9	Digits
58	3A	00111010	:	Colon	Punctuation
59	3B	00111011	;	Semicolon	Punctuation
60	3C	00111100	<	Less than	Punctuation
61	3D	00111101	=	Equals sign	Punctuation
62	3E	00111110	>	Greater than	Punctuation
63	3F	00111111	?	Question mark	Punctuation
64	40	01000000	@	At sign	Punctuation
65	41	01000001	A	Uppercase A	Uppercase
66	42	01000010	B	Uppercase B	Uppercase
67	43	01000011	C	Uppercase C	Uppercase
68	44	01000100	D	Uppercase D	Uppercase
69	45	01000101	E	Uppercase E	Uppercase
70	46	01000110	F	Uppercase F	Uppercase
71	47	01000111	G	Uppercase G	Uppercase
72	48	01001000	H	Uppercase H	Uppercase
73	49	01001001	I	Uppercase I	Uppercase
74	4A	01001010	J	Uppercase J	Uppercase
75	4B	01001011	K	Uppercase K	Uppercase
76	4C	01001100	L	Uppercase L	Uppercase
77	4D	01001101	M	Uppercase M	Uppercase
78	4E	01001110	N	Uppercase N	Uppercase
79	4F	01001111	O	Uppercase O	Uppercase
80	50	01010000	P	Uppercase P	Uppercase
81	51	01010001	Q	Uppercase Q	Uppercase
82	52	01010010	R	Uppercase R	Uppercase
83	53	01010011	S	Uppercase S	Uppercase
84	54	01010100	T	Uppercase T	Uppercase
85	55	01010101	U	Uppercase U	Uppercase
86	56	01010110	V	Uppercase V	Uppercase
87	57	01010111	W	Uppercase W	Uppercase
88	58	01011000	X	Uppercase X	Uppercase
89	59	01011001	Y	Uppercase Y	Uppercase
90	5A	01011010	Z	Uppercase Z	Uppercase
91	5B	01011011	[	Left square bracket	Punctuation
92	5C	01011100	\	Backslash	Punctuation
93	5D	01011101	]	Right square bracket	Punctuation
94	5E	01011110	^	Caret	Punctuation
95	5F	01011111	_	Underscore	Punctuation
96	60	01100000	`	Grave accent	Punctuation
97	61	01100001	a	Lowercase a	Lowercase
98	62	01100010	b	Lowercase b	Lowercase
99	63	01100011	c	Lowercase c	Lowercase
100	64	01100100	d	Lowercase d	Lowercase
101	65	01100101	e	Lowercase e	Lowercase
102	66	01100110	f	Lowercase f	Lowercase
103	67	01100111	g	Lowercase g	Lowercase
104	68	01101000	h	Lowercase h	Lowercase
105	69	01101001	i	Lowercase i	Lowercase
106	6A	01101010	j	Lowercase j	Lowercase
107	6B	01101011	k	Lowercase k	Lowercase
108	6C	01101100	l	Lowercase l	Lowercase
109	6D	01101101	m	Lowercase m	Lowercase
110	6E	01101110	n	Lowercase n	Lowercase
111	6F	01101111	o	Lowercase o	Lowercase
112	70	01110000	p	Lowercase p	Lowercase
113	71	01110001	q	Lowercase q	Lowercase
114	72	01110010	r	Lowercase r	Lowercase
115	73	01110011	s	Lowercase s	Lowercase
116	74	01110100	t	Lowercase t	Lowercase
117	75	01110101	u	Lowercase u	Lowercase
118	76	01110110	v	Lowercase v	Lowercase
119	77	01110111	w	Lowercase w	Lowercase
120	78	01111000	x	Lowercase x	Lowercase
121	79	01111001	y	Lowercase y	Lowercase
122	7A	01111010	z	Lowercase z	Lowercase
123	7B	01111011	{	Left curly brace	Punctuation
124	7C	01111100	\|	Vertical bar	Punctuation
125	7D	01111101	}	Right curly brace	Punctuation
126	7E	01111110	~	Tilde	Punctuation
127	7F	01111111	·	DEL (Delete)	Special

Showing 128 of 128 ASCII characters (0–127)

About ASCII

ASCII (American Standard Code for Information Interchange) is a character encoding standard that uses 7 bits to represent 128 characters (0–127). It includes control characters (0–31), printable characters (32–126), and the DEL character (127). Base64 encoding relies on a subset of ASCII characters — specifically A-Z, a-z, 0-9, +, /, and =.