Text & bytes

Hex to ASCII Converter

Decode hex precisely, inspect every byte, and choose strict ASCII or validated UTF-8 instead of guessing the encoding.

Byte-accurate diagnostics

Decode as

Escape control characters

Synchronized byte inspector

Select a row to locate its source bytes.

0 bytes

Index	Source	Hex	Decimal	Character	Control name
Enter bytes to populate the inspector.

Reference asset

Complete ASCII / hex reference table

Canonical 7-bit ASCII spans decimal 0–127 (hex 00–7F). Bytes 80–FF are not ASCII; decode them only with a declared encoding such as UTF-8.

Decimal	Hex	Abbreviation	Character	Name
0	`00`	`NUL`	`\x00`	Null
1	`01`	`SOH`	`\x01`	Start of Heading
2	`02`	`STX`	`\x02`	Start of Text
3	`03`	`ETX`	`\x03`	End of Text
4	`04`	`EOT`	`\x04`	End of Transmission
5	`05`	`ENQ`	`\x05`	Enquiry
6	`06`	`ACK`	`\x06`	Acknowledge
7	`07`	`BEL`	`\x07`	Bell
8	`08`	`BS`	`\x08`	Backspace
9	`09`	`HT`	`\x09`	Horizontal Tab
10	`0A`	`LF`	`\x0A`	Line Feed
11	`0B`	`VT`	`\x0B`	Vertical Tab
12	`0C`	`FF`	`\x0C`	Form Feed
13	`0D`	`CR`	`\x0D`	Carriage Return
14	`0E`	`SO`	`\x0E`	Shift Out
15	`0F`	`SI`	`\x0F`	Shift In
16	`10`	`DLE`	`\x10`	Data Link Escape
17	`11`	`DC1`	`\x11`	Device Control 1
18	`12`	`DC2`	`\x12`	Device Control 2
19	`13`	`DC3`	`\x13`	Device Control 3
20	`14`	`DC4`	`\x14`	Device Control 4
21	`15`	`NAK`	`\x15`	Negative Acknowledge
22	`16`	`SYN`	`\x16`	Synchronous Idle
23	`17`	`ETB`	`\x17`	End of Transmission Block
24	`18`	`CAN`	`\x18`	Cancel
25	`19`	`EM`	`\x19`	End of Medium
26	`1A`	`SUB`	`\x1A`	Substitute
27	`1B`	`ESC`	`\x1B`	Escape
28	`1C`	`FS`	`\x1C`	File Separator
29	`1D`	`GS`	`\x1D`	Group Separator
30	`1E`	`RS`	`\x1E`	Record Separator
31	`1F`	`US`	`\x1F`	Unit Separator
32	`20`	`SP`	`space`	Space
33	`21`	`!`	`!`	Printable character
34	`22`	`"`	`"`	Printable character
35	`23`	`#`	`#`	Printable character
36	`24`	`$`	`$`	Printable character
37	`25`	`%`	`%`	Printable character
38	`26`	`&`	`&`	Printable character
39	`27`	`'`	`'`	Printable character
40	`28`	`(`	`(`	Printable character
41	`29`	`)`	`)`	Printable character
42	`2A`	`*`	`*`	Printable character
43	`2B`	`+`	`+`	Printable character
44	`2C`	`,`	`,`	Printable character
45	`2D`	`-`	`-`	Printable character
46	`2E`	`.`	`.`	Printable character
47	`2F`	`/`	`/`	Printable character
48	`30`	`0`	`0`	Printable character
49	`31`	`1`	`1`	Printable character
50	`32`	`2`	`2`	Printable character
51	`33`	`3`	`3`	Printable character
52	`34`	`4`	`4`	Printable character
53	`35`	`5`	`5`	Printable character
54	`36`	`6`	`6`	Printable character
55	`37`	`7`	`7`	Printable character
56	`38`	`8`	`8`	Printable character
57	`39`	`9`	`9`	Printable character
58	`3A`	`:`	`:`	Printable character
59	`3B`	`;`	`;`	Printable character
60	`3C`	`<`	`<`	Printable character
61	`3D`	`=`	`=`	Printable character
62	`3E`	`>`	`>`	Printable character
63	`3F`	`?`	`?`	Printable character
64	`40`	`@`	`@`	Printable character
65	`41`	`A`	`A`	Printable character
66	`42`	`B`	`B`	Printable character
67	`43`	`C`	`C`	Printable character
68	`44`	`D`	`D`	Printable character
69	`45`	`E`	`E`	Printable character
70	`46`	`F`	`F`	Printable character
71	`47`	`G`	`G`	Printable character
72	`48`	`H`	`H`	Printable character
73	`49`	`I`	`I`	Printable character
74	`4A`	`J`	`J`	Printable character
75	`4B`	`K`	`K`	Printable character
76	`4C`	`L`	`L`	Printable character
77	`4D`	`M`	`M`	Printable character
78	`4E`	`N`	`N`	Printable character
79	`4F`	`O`	`O`	Printable character
80	`50`	`P`	`P`	Printable character
81	`51`	`Q`	`Q`	Printable character
82	`52`	`R`	`R`	Printable character
83	`53`	`S`	`S`	Printable character
84	`54`	`T`	`T`	Printable character
85	`55`	`U`	`U`	Printable character
86	`56`	`V`	`V`	Printable character
87	`57`	`W`	`W`	Printable character
88	`58`	`X`	`X`	Printable character
89	`59`	`Y`	`Y`	Printable character
90	`5A`	`Z`	`Z`	Printable character
91	`5B`	`[`	`[`	Printable character
92	`5C`	`\`	`\`	Printable character
93	`5D`	`]`	`]`	Printable character
94	`5E`	`^`	`^`	Printable character
95	`5F`	`_`	`_`	Printable character
96	`60`	`	`	Printable character
97	`61`	`a`	`a`	Printable character
98	`62`	`b`	`b`	Printable character
99	`63`	`c`	`c`	Printable character
100	`64`	`d`	`d`	Printable character
101	`65`	`e`	`e`	Printable character
102	`66`	`f`	`f`	Printable character
103	`67`	`g`	`g`	Printable character
104	`68`	`h`	`h`	Printable character
105	`69`	`i`	`i`	Printable character
106	`6A`	`j`	`j`	Printable character
107	`6B`	`k`	`k`	Printable character
108	`6C`	`l`	`l`	Printable character
109	`6D`	`m`	`m`	Printable character
110	`6E`	`n`	`n`	Printable character
111	`6F`	`o`	`o`	Printable character
112	`70`	`p`	`p`	Printable character
113	`71`	`q`	`q`	Printable character
114	`72`	`r`	`r`	Printable character
115	`73`	`s`	`s`	Printable character
116	`74`	`t`	`t`	Printable character
117	`75`	`u`	`u`	Printable character
118	`76`	`v`	`v`	Printable character
119	`77`	`w`	`w`	Printable character
120	`78`	`x`	`x`	Printable character
121	`79`	`y`	`y`	Printable character
122	`7A`	`z`	`z`	Printable character
123	`7B`	`{`	`{`	Printable character
124	`7C`	`\|`	`\|`	Printable character
125	`7D`	`}`	`}`	Printable character
126	`7E`	`~`	`~`	Printable character
127	`7F`	`DEL`	`\x7F`	Delete

How to Convert Hex to ASCII

Paste or type bytes, choose Strict ASCII or UTF-8, then inspect the decoded result and synchronized byte rows. Click a row to select its exact source span, or escape invisible control characters before copying or downloading.

What is Hexadecimal?

Hexadecimal (base-16) is a numbering system using digits 0-9 and letters A-F. Each hex digit represents 4 bits, making it a compact way to represent binary data. Two hex digits represent one byte (0-255).

What is ASCII?

ASCII is a 7-bit character encoding with values 0-127. Values 0-31 and 127 are controls; printable English letters, digits, punctuation, and space occupy the remaining range. UTF-8 is a separate encoding that preserves ASCII while adding multi-byte Unicode text.

Common Use Cases

Hex to ASCII conversion is used for debugging network protocols, reading hex dumps, decoding packet captures, checking encoded strings, and working with embedded systems or low-level programming.

Hex to ASCII Table

Use the complete 0-127 table above as a canonical reference for decimal, hexadecimal, abbreviations, printable characters, and control names.

Input	Output	Note
20	space	Word separator
0A	line feed	New line in Unix text
30-39	0-9	ASCII digits
41-5A	A-Z	Uppercase letters
61-7A	a-z	Lowercase letters
48 65 6C 6C 6F	Hello	Example word

Frequently Asked Questions

What hex formats are supported?

The inspector accepts continuous hex, spaced bytes, 0x-prefixed groups, escaped \xNN bytes, line breaks, and comma, colon, hyphen, semicolon, pipe, or underscore delimiters.

Can I convert hex to chars or Unicode text?

Choose Strict ASCII for bytes 00-7F or UTF-8 for validated multi-byte Unicode text. Bytes above 7F are never labelled ASCII.

What if my hex contains invalid characters?

The inspector identifies the exact source line and column for an invalid character, incomplete prefix, odd nibble, non-ASCII byte, or malformed UTF-8 sequence.

Is this useful for debugging?

Yes, developers often use hex-to-ASCII conversion when debugging binary protocols, analyzing network traffic, or working with low-level data.

Is there a hex to ASCII table?

Yes. The reference section below includes common hexadecimal byte values, their ASCII output, and notes for letters, digits, spaces, and line breaks.

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