Text to Hex Converter (ASCII and UTF-8)

Text

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Convert to

Outputa space between bytes

In hex

48 69 2C 20 63 61 66 C3 A9

8 characters, 9 bytes in UTF-8.

H48

i69

,2C

space20

c63

a61

f66

éC3A9

ASCII tableEvery character with its decimal, hex and binary code.Colour converterHex colour codes are base 16 too: convert HEX, RGB and HSL.Base64 encoderEncode and decode text or files as Base64.

Worked example, character by characterEach character’s code, then its UTF-8 bytes in hex

Character	Code point	Decimal	UTF-8 bytes (hex)
H	U+0048	72	48
i	U+0069	105	69
,	U+002C	44	2C
space	U+0020	32	20
c	U+0063	99	63
a	U+0061	97	61
f	U+0066	102	66
é	U+00E9	233	C3 A9

Characters outside ASCII take two to four bytes; the first byte’s leading 1s say how many.

ASCII tableEvery character with its decimal, hex and binary code.Colour converterHex colour codes are base 16 too: convert HEX, RGB and HSL.Base64 encoderEncode and decode text or files as Base64.

How text becomes hex

Each character is first encoded as bytes, ASCII for plain English and UTF-8 for everything else, and each byte is written as two hex digits from 00 to FF. Hex is how editors, debuggers and network tools show raw text.

For “Hi!”: H = 0x48, i = 0x69, ! = 0x21, so the hex is 48 69 21. A useful pattern: capitals run from 41 (A) to 5A (Z), small letters from 61 (a) to 7A (z), and digits from 30 (0) to 39 (9), so a digit’s hex is just 3 in front of it.

In code you often need the bytes written as escapes: \x48\x69 in C or Python strings, or %48%69 in URLs. Copy the spaced form and replace the spaces with the escape you need.

character → UTF-8 bytes → two hex digits per byte

Unicode assigns every character a code point written U+ and hex digits, such as U+00E9 for é; UTF-8 stores it as C3 A9. Source: The Unicode Standard.

Printable ASCII characters in hex

All 95 printable ASCII characters, from the space (20) to the tilde (7E).

All 95 printable ASCII characters, from the space (20) to the tilde (7E).
Hex	Character	Decimal
20	space	32
21	!	33
22	"	34
23	#	35
24	$	36
25	%	37
26	&	38
27	'	39
28	(	40
29	)	41

Show all 95 rows

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

Frequently Asked Questions

What is “A” in hex?

Capital A is 41 in hex (65 in decimal), and small a is 61. The difference, 20 in hex, is the one bit that sets the case.

Why is my hex output longer than my text?

Every byte takes two hex digits, and characters outside ASCII take two to four bytes in UTF-8. So “é” becomes C3 A9, four hex digits for one character.

How do I get hex without spaces?

Switch the separator to None under the result. The bytes are then written as one run, such as 486921, which most tools accept as well.

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

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

Text to Hex Converter

Next

How text becomes hex

Printable ASCII characters in hex

Frequently Asked Questions

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