ASCII Characters ␀ ␣ ¶

By Xah Lee. Date: 2010-09-03. Last updated: 2019-05-25.

ASCII characters are Unicode characters with codepoint from 0 to 127, inclusive. They are mostly the symbols you see on computer keyboard.

Codepoint 0 to 31, and 127, are control characters or non-printables characters. (including space, tab, newline characters). Also, codepoint 127 is DEL, usually the signal sent by the ⌫ Backspace key or ⌦ Delete on keyboard.

ASCII Table

ASCII Control Characters
Decimal	Hex	Abbr	Unicode Symbol	Caret Notation	C Escape Syntax	Description
0	00	NUL	␀	^@	\0	Null character
1	01	SOH	␁	^A		Start of Header
2	02	STX	␂	^B		Start of Text
3	03	ETX	␃	^C		End of Text
4	04	EOT	␄	^D		End of Transmission
5	05	ENQ	␅	^E		Enquiry
6	06	ACK	␆	^F		Acknowledgment
7	07	BEL	␇	^G	\a	Bell
8	08	BS	␈	^H	\b	Backspace
9	09	HT	␉	^I	\t	Horizontal Tab
10	0A	LF	␊	^J	\n	Line feed
11	0B	VT	␋	^K	\v	Vertical Tab
12	0C	FF	␌	^L	\f	Form feed
13	0D	CR	␍	^M	\r	Carriage return
14	0E	SO	␎	^N		Shift Out
15	0F	SI	␏	^O		Shift In
16	10	DLE	␐	^P		Data Link Escape
17	11	DC1	␑	^Q		Device Control 1 (oft. XON)
18	12	DC2	␒	^R		Device Control 2
19	13	DC3	␓	^S		Device Control 3 (oft. XOFF)
20	14	DC4	␔	^T		Device Control 4
21	15	NAK	␕	^U		Negative Acknowledgment
22	16	SYN	␖	^V		Synchronous Idle
23	17	ETB	␗	^W		End of Trans. Block
24	18	CAN	␘	^X		Cancel
25	19	EM	␙	^Y		End of Medium
26	1A	SUB	␚	^Z		Substitute
27	1B	ESC	␛	^[	\e	Escape
28	1C	FS	␜	^\		File Separator
29	1D	GS	␝	^]		Group Separator
30	1E	RS	␞	^^		Record Separator
31	1F	US	␟	^_		Unit Separator
Decimal	Hex	Abbr	Unicode Symbol	Caret Notation	C Escape Syntax	Description
127	7F	DEL	␡	^?		Delete

ASCII Table
Decimal	Hex	Unicode Symbol
32	20
33	21	!
34	22	"
35	23	#
36	24	$
37	25	%
38	26	&
39	27	´
40	28	(
41	29	)
42	2A	*
43	2B	+
44	2C	,
45	2D	-
46	2E	.
47	2F	/
Decimal	Hex	Unicode Symbol
48	30	0
49	31	1
50	32	2
51	33	3
52	34	4
53	35	5
54	36	6
55	37	7
56	38	8
57	39	9
58	3A	:
59	3B	;
60	3C	<
61	3D	=
62	3E	>
63	3F	?
64	40	@
Decimal	Hex	Unicode Symbol
65	41	A
66	42	B
67	43	C
68	44	D
69	45	E
70	46	F
71	47	G
72	48	H
73	49	I
74	4A	J
75	4B	K
76	4C	L
77	4D	M
78	4E	N
79	4F	O
80	50	P
81	51	Q
82	52	R
83	53	S
84	54	T
85	55	U
86	56	V
87	57	W
88	58	X
89	59	Y
90	5A	Z
91	5B	[
92	5C	\
93	5D	]
94	5E	^
95	5F	_
96	60	`
Decimal	Hex	Unicode Symbol
97	61	a
98	62	b
99	63	c
100	64	d
101	65	e
102	66	f
103	67	g
104	68	h
105	69	i
106	6A	j
107	6B	k
108	6C	l
109	6D	m
110	6E	n
111	6F	o
112	70	p
113	71	q
114	72	r
115	73	s
116	74	t
117	75	u
118	76	v
119	77	w
120	78	x
121	79	y
122	7A	z
Decimal	Hex	Unicode Symbol
123	7B	{
124	7C	\|
125	7D	}
126	7E	~

Unicode Symbol Representation

Unicode has glyphs to represent non-printables ASCII characters.

␀ ␁ ␂ ␃ ␄ ␅ ␆ ␇ ␈ ␉ ␊ ␋ ␌ ␍ ␎ ␏ ␐ ␑ ␒ ␓ ␔ ␕ ␖ ␗ ␘ ␙ ␚ ␛ ␜ ␝ ␞ ␟ ␡

Representation of Unprintable Characters

Unprintable Characters can be represented in multiple ways. By decimal, hexadecimal, by standardized abbrev, or Unicode glyph, or caret notation, and in programing languages some have C escape syntax in string.

Caret notation is heavily used in emacs. [see Emacs: Newline Representation ^M ^J ^L]

Non-printable ASCII is heavily used in unix terminal. See: Linux: Terminal Control Sequence Keys

Stack Overflow offline screenshot — Stack Overflow Offline Page (2011-08-06T13:49:05-07:00) showing unprintable ASCII characters, by caret notation. Note that the ^M represents the ASCII 13, carriage return. Any ^ followed by a letter represents a ASCII non-printable char. The ^@ is ASCII 0, the Null character.

Whitespace Character Representation

Here are other character representation symbols. They are often used in text editor or word processor to indicate whitespace.

Tab ↹ ⇄ ⇤ ⇥ ↤ ↦ ◁ ▷

space · ␣ ˽ ␠ ␢

paragraph, section, newline. ¶ § ␤ ↵ ↩ ⏎

Sample usage: Emacs's whitespace-mode

Unicode Keyboard Symbols ⌘ ⏎ ⌫

misc character, editing

Unicode Symbols

Unicode Search

Type heart face, or 9829, or U+1f60d, or paste emoji 😂.

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