ASCII Table

Decimal, hex, octal and binary for every ASCII character — searchable.

The ASCII Table lists all 128 ASCII characters with their decimal, hexadecimal, octal and binary codes — the reference developers reach for when decoding bytes, crafting escape sequences or explaining how text becomes data.

Every letter, digit and symbol you type is a number underneath: 'A' is 65 (0x41), 'a' is 97 (0x61), the space is 32, and newline is 10. Control codes 0–31 do invisible jobs — carriage return, tab, escape — and the table names them so byte dumps make sense.

Search by character, decimal, hex or control name, and click any printable character to copy it. The table is static, complete and runs locally in your browser.

Dec	Hex	Oct	Binary	Char	Control / name
0	00	000	00000000	·	NUL
1	01	001	00000001	·	control 1
2	02	002	00000010	·	control 2
3	03	003	00000011	·	control 3
4	04	004	00000100	·	control 4
5	05	005	00000101	·	control 5
6	06	006	00000110	·	control 6
7	07	007	00000111	·	control 7
8	08	010	00001000	·	control 8
9	09	011	00001001	·	TAB
10	0A	012	00001010	·	LF
11	0B	013	00001011	·	control 11
12	0C	014	00001100	·	control 12
13	0D	015	00001101	·	CR
14	0E	016	00001110	·	control 14
15	0F	017	00001111	·	control 15
16	10	020	00010000	·	control 16
17	11	021	00010001	·	control 17
18	12	022	00010010	·	control 18
19	13	023	00010011	·	control 19
20	14	024	00010100	·	control 20
21	15	025	00010101	·	control 21
22	16	026	00010110	·	control 22
23	17	027	00010111	·	control 23
24	18	030	00011000	·	control 24
25	19	031	00011001	·	control 25
26	1A	032	00011010	·	control 26
27	1B	033	00011011	·	ESC
28	1C	034	00011100	·	control 28
29	1D	035	00011101	·	control 29
30	1E	036	00011110	·	control 30
31	1F	037	00011111	·	control 31
32	20	040	00100000		SPACE
33	21	041	00100001
34	22	042	00100010
35	23	043	00100011
36	24	044	00100100
37	25	045	00100101
38	26	046	00100110
39	27	047	00100111
40	28	050	00101000
41	29	051	00101001
42	2A	052	00101010
43	2B	053	00101011
44	2C	054	00101100
45	2D	055	00101101
46	2E	056	00101110
47	2F	057	00101111
48	30	060	00110000
49	31	061	00110001
50	32	062	00110010
51	33	063	00110011
52	34	064	00110100
53	35	065	00110101
54	36	066	00110110
55	37	067	00110111
56	38	070	00111000
57	39	071	00111001
58	3A	072	00111010
59	3B	073	00111011
60	3C	074	00111100
61	3D	075	00111101
62	3E	076	00111110
63	3F	077	00111111
64	40	100	01000000
65	41	101	01000001
66	42	102	01000010
67	43	103	01000011
68	44	104	01000100
69	45	105	01000101
70	46	106	01000110
71	47	107	01000111
72	48	110	01001000
73	49	111	01001001
74	4A	112	01001010
75	4B	113	01001011
76	4C	114	01001100
77	4D	115	01001101
78	4E	116	01001110
79	4F	117	01001111
80	50	120	01010000
81	51	121	01010001
82	52	122	01010010
83	53	123	01010011
84	54	124	01010100
85	55	125	01010101
86	56	126	01010110
87	57	127	01010111
88	58	130	01011000
89	59	131	01011001
90	5A	132	01011010
91	5B	133	01011011
92	5C	134	01011100
93	5D	135	01011101
94	5E	136	01011110
95	5F	137	01011111
96	60	140	01100000
97	61	141	01100001
98	62	142	01100010
99	63	143	01100011
100	64	144	01100100
101	65	145	01100101
102	66	146	01100110
103	67	147	01100111
104	68	150	01101000
105	69	151	01101001
106	6A	152	01101010
107	6B	153	01101011
108	6C	154	01101100
109	6D	155	01101101
110	6E	156	01101110
111	6F	157	01101111
112	70	160	01110000
113	71	161	01110001
114	72	162	01110010
115	73	163	01110011
116	74	164	01110100
117	75	165	01110101
118	76	166	01110110
119	77	167	01110111
120	78	170	01111000
121	79	171	01111001
122	7A	172	01111010
123	7B	173	01111011
124	7C	174	01111100
125	7D	175	01111101
126	7E	176	01111110
127	7F	177	01111111	·	DEL

Standard ASCII 0–127. Click any printable character to copy it.

How to use the ASCII Table

Scroll the full 0–127 table.
Search for a character, number or control name.
Read its decimal, hex, octal and binary codes.
Click a printable character to copy it.
Use the codes in your code, protocols or byte analysis.

Frequently asked questions

Why do I need octal and binary columns?

Octal appears in Unix permissions and legacy escapes (\101 = 'A'); binary shows the raw bits. Different tools and protocols speak different bases, so the reference gives all four at once.

What is the difference between ASCII and Unicode?

ASCII is a 128-character set (7 bits). Unicode extends it to over a million characters; the first 128 Unicode code points are identical to ASCII, which is why this table stays relevant.

What are control characters?

Codes 0–31 that command devices and text systems rather than printing: tab (9), line feed (10), carriage return (13), escape (27). They appear as blanks in text but are real bytes in data.

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ASCII Table

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Frequently asked questions

Why do I need octal and binary columns?

What is the difference between ASCII and Unicode?

What are control characters?

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