How is this different from the Unicode Character Lookup or Finder?

Those tools look up detailed information about one specific Unicode character at a time, across the entire Unicode range (which spans over a million code points). This ASCII Table Viewer is a complete browsable reference table specifically of the foundational 128-character ASCII set — you scroll or search through the whole table rather than inspecting a single character.

Why does the table stop at 127?

Standard ASCII is defined as exactly 128 characters, codes 0 through 127. Codes above 127 (128-255 and beyond) belong to extended character sets like Latin-1 or full Unicode, which sit outside the original ASCII standard.

What do the control character names mean?

They're standard abbreviations from the ASCII specification for non-printable control codes — for example, LF (line feed) and CR (carriage return) are used to represent new lines, and ESC (escape) is used to start special escape sequences in terminals.

ASCII Table Viewer

Browse the complete standard ASCII table (codes 0-127) with decimal, hex, octal, and binary values, searchable by character, value, or name.

Search by character, decimal value, or name

Character / Name	Decimal	Hex	Octal	Binary
NUL	0	0x00	000	0000000
SOH	1	0x01	001	0000001
STX	2	0x02	002	0000010
ETX	3	0x03	003	0000011
EOT	4	0x04	004	0000100
ENQ	5	0x05	005	0000101
ACK	6	0x06	006	0000110
BEL	7	0x07	007	0000111
BS	8	0x08	010	0001000
TAB	9	0x09	011	0001001
LF	10	0x0A	012	0001010
VT	11	0x0B	013	0001011
FF	12	0x0C	014	0001100
CR	13	0x0D	015	0001101
SO	14	0x0E	016	0001110
SI	15	0x0F	017	0001111
DLE	16	0x10	020	0010000
DC1	17	0x11	021	0010001
DC2	18	0x12	022	0010010
DC3	19	0x13	023	0010011
DC4	20	0x14	024	0010100
NAK	21	0x15	025	0010101
SYN	22	0x16	026	0010110
ETB	23	0x17	027	0010111
CAN	24	0x18	030	0011000
EM	25	0x19	031	0011001
SUB	26	0x1A	032	0011010
ESC	27	0x1B	033	0011011
FS	28	0x1C	034	0011100
GS	29	0x1D	035	0011101
RS	30	0x1E	036	0011110
US	31	0x1F	037	0011111
SPACE	32	0x20	040	0100000
!	33	0x21	041	0100001
"	34	0x22	042	0100010
#	35	0x23	043	0100011
$	36	0x24	044	0100100
%	37	0x25	045	0100101
&	38	0x26	046	0100110
'	39	0x27	047	0100111
(	40	0x28	050	0101000
)	41	0x29	051	0101001
*	42	0x2A	052	0101010
+	43	0x2B	053	0101011
,	44	0x2C	054	0101100
-	45	0x2D	055	0101101
.	46	0x2E	056	0101110
/	47	0x2F	057	0101111
0	48	0x30	060	0110000
1	49	0x31	061	0110001
2	50	0x32	062	0110010
3	51	0x33	063	0110011
4	52	0x34	064	0110100
5	53	0x35	065	0110101
6	54	0x36	066	0110110
7	55	0x37	067	0110111
8	56	0x38	070	0111000
9	57	0x39	071	0111001
:	58	0x3A	072	0111010
;	59	0x3B	073	0111011
<	60	0x3C	074	0111100
=	61	0x3D	075	0111101
>	62	0x3E	076	0111110
?	63	0x3F	077	0111111
@	64	0x40	100	1000000
A	65	0x41	101	1000001
B	66	0x42	102	1000010
C	67	0x43	103	1000011
D	68	0x44	104	1000100
E	69	0x45	105	1000101
F	70	0x46	106	1000110
G	71	0x47	107	1000111
H	72	0x48	110	1001000
I	73	0x49	111	1001001
J	74	0x4A	112	1001010
K	75	0x4B	113	1001011
L	76	0x4C	114	1001100
M	77	0x4D	115	1001101
N	78	0x4E	116	1001110
O	79	0x4F	117	1001111
P	80	0x50	120	1010000
Q	81	0x51	121	1010001
R	82	0x52	122	1010010
S	83	0x53	123	1010011
T	84	0x54	124	1010100
U	85	0x55	125	1010101
V	86	0x56	126	1010110
W	87	0x57	127	1010111
X	88	0x58	130	1011000
Y	89	0x59	131	1011001
Z	90	0x5A	132	1011010
[	91	0x5B	133	1011011
\	92	0x5C	134	1011100
]	93	0x5D	135	1011101
^	94	0x5E	136	1011110
_	95	0x5F	137	1011111
`	96	0x60	140	1100000
a	97	0x61	141	1100001
b	98	0x62	142	1100010
c	99	0x63	143	1100011
d	100	0x64	144	1100100
e	101	0x65	145	1100101
f	102	0x66	146	1100110
g	103	0x67	147	1100111
h	104	0x68	150	1101000
i	105	0x69	151	1101001
j	106	0x6A	152	1101010
k	107	0x6B	153	1101011
l	108	0x6C	154	1101100
m	109	0x6D	155	1101101
n	110	0x6E	156	1101110
o	111	0x6F	157	1101111
p	112	0x70	160	1110000
q	113	0x71	161	1110001
r	114	0x72	162	1110010
s	115	0x73	163	1110011
t	116	0x74	164	1110100
u	117	0x75	165	1110101
v	118	0x76	166	1110110
w	119	0x77	167	1110111
x	120	0x78	170	1111000
y	121	0x79	171	1111001
z	122	0x7A	172	1111010
{	123	0x7B	173	1111011
\|	124	0x7C	174	1111100
}	125	0x7D	175	1111101
~	126	0x7E	176	1111110
DEL	127	0x7F	177	1111111

How to Use the ASCII Table Viewer

Browse the complete standard ASCII table, codes 0 through 127, with each row showing its decimal, hexadecimal, octal, and binary representation, plus the character itself for printable codes or the standard control-character name (like NUL, LF, CR, or ESC) for codes 0-31 and 127. Use the search box to filter by typing a character, a decimal value, or a name — the table narrows down instantly.

Example

Searching "65" shows the row for uppercase A: decimal 65, hex 0x41, octal 101, and binary 1000001. Searching "LF" shows code 10, the line feed control character used to represent a new line.

Common Use Cases

Looking up the decimal or hex value of a character for use in code, escape sequences, or byte manipulation.
Identifying an unfamiliar control character code, like what 0x1B (ESC) represents.
Converting between decimal, hex, octal, and binary representations of a character code.

FAQs

How is this different from the Unicode Character Lookup or Finder? Those tools look up detailed information about one specific Unicode character at a time, across the entire Unicode range (which spans over a million code points). This ASCII Table Viewer is a complete browsable reference table specifically of the foundational 128-character ASCII set — you scroll or search through the whole table rather than inspecting a single character.
Why does the table stop at 127? Standard ASCII is defined as exactly 128 characters, codes 0 through 127. Codes above 127 (128-255 and beyond) belong to extended character sets like Latin-1 or full Unicode, which sit outside the original ASCII standard.
What do the control character names mean? They're standard abbreviations from the ASCII specification for non-printable control codes — for example, LF (line feed) and CR (carriage return) are used to represent new lines, and ESC (escape) is used to start special escape sequences in terminals.

ASCII Table Viewer

How to Use the ASCII Table Viewer

Example

Common Use Cases

FAQs

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