ASCII stands for American Standard Code for Information Interchange. Computers can only understand numbers, so an ASCII code is the numerical representation of a character such as 'a' or '@' or a control of an action of some sort.
DEC | OCT | HEX | BIN | Character / Control | HTML Code | Escape Character | Description |
---|---|---|---|---|---|---|---|
0 | 0o000 | 0x00 | 0b00000000 | NUL | � | \0 | Null Char |
1 | 0o001 | 0x01 | 0b00000001 | SOH |  | \x01 | Start of Heading |
2 | 0o002 | 0x02 | 0b00000010 | STX |  | \x02 | Start of Text |
3 | 0o003 | 0x03 | 0b00000011 | ETX |  | \x03 | End of Text |
4 | 0o004 | 0x04 | 0b00000100 | EOT |  | \x04 | End of Transmission |
5 | 0o005 | 0x05 | 0b00000101 | ENQ |  | \x05 | Enquiry |
6 | 0o006 | 0x06 | 0b00000110 | ACK |  | \x06 | Acknowledgment |
7 | 0o007 | 0x07 | 0b00000111 | BEL |  | \x07 | Bell |
8 | 0o010 | 0x08 | 0b00001000 | BS |  | \b | Back Space |
9 | 0o011 | 0x09 | 0b00001001 | HT | 	 | \t | Horizontal Tab |
10 | 0o012 | 0x0a | 0b00001010 | LF | 
 | \n | Line Feed |
11 | 0o013 | 0x0b | 0b00001011 | VT |  | \v | Vertical Tab |
12 | 0o014 | 0x0c | 0b00001100 | FF |  | \f | Form Feed |
13 | 0o015 | 0x0d | 0b00001101 | CR | 
 | \r | Carriage Return |
14 | 0o016 | 0x0e | 0b00001110 | SO |  | \x0e | Shift Out / X-On |
15 | 0o017 | 0x0f | 0b00001111 | SI |  | \x0f | Shift In / X-Off |
16 | 0o020 | 0x10 | 0b00010000 | DLE |  | \x10 | Data Line Escape |
17 | 0o021 | 0x11 | 0b00010001 | DC1 |  | \x11 | Device Control 1 (oft. XON) |
18 | 0o022 | 0x12 | 0b00010010 | DC2 |  | \x12 | Device Control 2 |
19 | 0o023 | 0x13 | 0b00010011 | DC3 |  | \x13 | Device Control 3 (oft. XOFF) |
20 | 0o024 | 0x14 | 0b00010100 | DC4 |  | \x14 | Device Control 4 |
21 | 0o025 | 0x15 | 0b00010101 | NAK |  | \x15 | Negative Acknowledgement |
22 | 0o026 | 0x16 | 0b00010110 | SYN |  | \x16 | Synchronous Idle |
23 | 0o027 | 0x17 | 0b00010111 | ETB |  | \x17 | End of Transmit Block |
24 | 0o030 | 0x18 | 0b00011000 | CAN |  | \x18 | Cancel |
25 | 0o031 | 0x19 | 0b00011001 | EM |  | \x19 | End of Medium |
26 | 0o032 | 0x1a | 0b00011010 | SUB |  | \x1a | Substitute |
27 | 0o033 | 0x1b | 0b00011011 | ESC |  | \x1b | Escape |
28 | 0o034 | 0x1c | 0b00011100 | FS |  | \x1c | File Separator |
29 | 0o035 | 0x1d | 0b00011101 | GS |  | \x1d | Group Separator |
30 | 0o036 | 0x1e | 0b00011110 | RS |  | \x1e | Record Separator |
31 | 0o037 | 0x1f | 0b00011111 | US |  | \x1f | Unit Separator |
32 | 0o040 | 0x20 | 0b00100000 |   | \x20 | Space | |
33 | 0o041 | 0x21 | 0b00100001 | ! | ! | \x21 | Exclamation Mark |
34 | 0o042 | 0x22 | 0b00100010 | " | " | \" | Double Quotes |
35 | 0o043 | 0x23 | 0b00100011 | # | # | \x23 | Number |
36 | 0o044 | 0x24 | 0b00100100 | $ | $ | \x24 | Dollar |
37 | 0o045 | 0x25 | 0b00100101 | % | % | \x25 | Procenttecken |
38 | 0o046 | 0x26 | 0b00100110 | & | & | \x26 | Ampersand |
39 | 0o047 | 0x27 | 0b00100111 | ' | ' | \' | Single Quote |
40 | 0o050 | 0x28 | 0b00101000 | ( | ( | \x28 | Open Parenthesis |
41 | 0o051 | 0x29 | 0b00101001 | ) | ) | \x29 | Close Parenthesis |
42 | 0o052 | 0x2a | 0b00101010 | * | * | \x2a | Asterisk |
43 | 0o053 | 0x2b | 0b00101011 | + | + | \x2b | Plus |
44 | 0o054 | 0x2c | 0b00101100 | , | , | \x2c | Comma |
45 | 0o055 | 0x2d | 0b00101101 | - | - | \x2d | Hyphen |
46 | 0o056 | 0x2e | 0b00101110 | . | . | \x2e | Period, Dot or Full Stop |
47 | 0o057 | 0x2f | 0b00101111 | / | / | \x2f | Slash or Divide |
48 | 0o060 | 0x30 | 0b00110000 | 0 | 0 | \x30 | Zero |
49 | 0o061 | 0x31 | 0b00110001 | 1 | 1 | \x31 | One |
50 | 0o062 | 0x32 | 0b00110010 | 2 | 2 | \x32 | Two |
51 | 0o063 | 0x33 | 0b00110011 | 3 | 3 | \x33 | Three |
52 | 0o064 | 0x34 | 0b00110100 | 4 | 4 | \x34 | Four |
53 | 0o065 | 0x35 | 0b00110101 | 5 | 5 | \x35 | Five |
54 | 0o066 | 0x36 | 0b00110110 | 6 | 6 | \x36 | Six |
55 | 0o067 | 0x37 | 0b00110111 | 7 | 7 | \x37 | Seven |
56 | 0o070 | 0x38 | 0b00111000 | 8 | 8 | \x38 | Eight |
57 | 0o071 | 0x39 | 0b00111001 | 9 | 9 | \x39 | Nine |
58 | 0o072 | 0x3a | 0b00111010 | : | : | \x3a | Colon |
59 | 0o073 | 0x3b | 0b00111011 | ; | ; | \x3b | Semicolon |
60 | 0o074 | 0x3c | 0b00111100 | < | < | \x3c | Less than |
61 | 0o075 | 0x3d | 0b00111101 | = | = | \x3d | Equals |
62 | 0o076 | 0x3e | 0b00111110 | > | > | \x3e | Greater than |
63 | 0o077 | 0x3f | 0b00111111 | ? | ? | \x3f | Question Mark |
64 | 0o100 | 0x40 | 0b01000000 | @ | @ | \x40 | At Symbol |
65 | 0o101 | 0x41 | 0b01000001 | A | A | \x41 | Uppercase A |
66 | 0o102 | 0x42 | 0b01000010 | B | B | \x42 | Uppercase B |
67 | 0o103 | 0x43 | 0b01000011 | C | C | \x43 | Uppercase C |
68 | 0o104 | 0x44 | 0b01000100 | D | D | \x44 | Uppercase D |
69 | 0o105 | 0x45 | 0b01000101 | E | E | \x45 | Uppercase E |
70 | 0o106 | 0x46 | 0b01000110 | F | F | \x46 | Uppercase F |
71 | 0o107 | 0x47 | 0b01000111 | G | G | \x47 | Uppercase G |
72 | 0o110 | 0x48 | 0b01001000 | H | H | \x48 | Uppercase H |
73 | 0o111 | 0x49 | 0b01001001 | I | I | \x49 | Uppercase I |
74 | 0o112 | 0x4a | 0b01001010 | J | J | \x4a | Uppercase J |
75 | 0o113 | 0x4b | 0b01001011 | K | K | \x4b | Uppercase K |
76 | 0o114 | 0x4c | 0b01001100 | L | L | \x4c | Uppercase L |
77 | 0o115 | 0x4d | 0b01001101 | M | M | \x4d | Uppercase M |
78 | 0o116 | 0x4e | 0b01001110 | N | N | \x4e | Uppercase N |
79 | 0o117 | 0x4f | 0b01001111 | O | O | \x4f | Uppercase O |
80 | 0o120 | 0x50 | 0b01010000 | P | P | \x50 | Uppercase P |
81 | 0o121 | 0x51 | 0b01010001 | Q | Q | \x51 | Uppercase Q |
82 | 0o122 | 0x52 | 0b01010010 | R | R | \x52 | Uppercase R |
83 | 0o123 | 0x53 | 0b01010011 | S | S | \x53 | Uppercase S |
84 | 0o124 | 0x54 | 0b01010100 | T | T | \x54 | Uppercase T |
85 | 0o125 | 0x55 | 0b01010101 | U | U | \x55 | Uppercase U |
86 | 0o126 | 0x56 | 0b01010110 | V | V | \x56 | Uppercase V |
87 | 0o127 | 0x57 | 0b01010111 | W | W | \x57 | Uppercase W |
88 | 0o130 | 0x58 | 0b01011000 | X | X | \x58 | Uppercase X |
89 | 0o131 | 0x59 | 0b01011001 | Y | Y | \x59 | Uppercase Y |
90 | 0o132 | 0x5a | 0b01011010 | Z | Z | \x5a | Uppercase Z |
91 | 0o133 | 0x5b | 0b01011011 | [ | [ | \x5b | Opening Bracket |
92 | 0o134 | 0x5c | 0b01011100 | \ | \ | \\ | Backslash |
93 | 0o135 | 0x5d | 0b01011101 | ] | ] | \x5d | Closing Bracket |
94 | 0o136 | 0x5e | 0b01011110 | ^ | ^ | \x5e | Caret - Circumflex |
95 | 0o137 | 0x5f | 0b01011111 | _ | _ | \x5f | Underscore |
96 | 0o140 | 0x60 | 0b01100000 | ` | ` | \x60 | Grave Accent |
97 | 0o141 | 0x61 | 0b01100001 | a | a | \x61 | Lowercase a |
98 | 0o142 | 0x62 | 0b01100010 | b | b | \x62 | Lowercase b |
99 | 0o143 | 0x63 | 0b01100011 | c | c | \x63 | Lowercase c |
100 | 0o144 | 0x64 | 0b01100100 | d | d | \x64 | Lowercase d |
101 | 0o145 | 0x65 | 0b01100101 | e | e | \x65 | Lowercase e |
102 | 0o146 | 0x66 | 0b01100110 | f | f | \x66 | Lowercase f |
103 | 0o147 | 0x67 | 0b01100111 | g | g | \x67 | Lowercase g |
104 | 0o150 | 0x68 | 0b01101000 | h | h | \x68 | Lowercase h |
105 | 0o151 | 0x69 | 0b01101001 | i | i | \x69 | Lowercase i |
106 | 0o152 | 0x6a | 0b01101010 | j | j | \x6a | Lowercase j |
107 | 0o153 | 0x6b | 0b01101011 | k | k | \x6b | Lowercase k |
108 | 0o154 | 0x6c | 0b01101100 | l | l | \x6c | Lowercase l |
109 | 0o155 | 0x6d | 0b01101101 | m | m | \x6d | Lowercase m |
110 | 0o156 | 0x6e | 0b01101110 | n | n | \x6e | Lowercase n |
111 | 0o157 | 0x6f | 0b01101111 | o | o | \x6f | Lowercase o |
112 | 0o160 | 0x70 | 0b01110000 | p | p | \x70 | Lowercase p |
113 | 0o161 | 0x71 | 0b01110001 | q | q | \x71 | Lowercase q |
114 | 0o162 | 0x72 | 0b01110010 | r | r | \x72 | Lowercase r |
115 | 0o163 | 0x73 | 0b01110011 | s | s | \x73 | Lowercase s |
116 | 0o164 | 0x74 | 0b01110100 | t | t | \x74 | Lowercase t |
117 | 0o165 | 0x75 | 0b01110101 | u | u | \x75 | Lowercase u |
118 | 0o166 | 0x76 | 0b01110110 | v | v | \x76 | Lowercase v |
119 | 0o167 | 0x77 | 0b01110111 | w | w | \x77 | Lowercase w |
120 | 0o170 | 0x78 | 0b01111000 | x | x | \x78 | Lowercase x |
121 | 0o171 | 0x79 | 0b01111001 | y | y | \x79 | Lowercase y |
122 | 0o172 | 0x7a | 0b01111010 | z | z | \x7a | Lowercase z |
123 | 0o173 | 0x7b | 0b01111011 | { | { | \x7b | Opening Brace |
124 | 0o174 | 0x7c | 0b01111100 | | | | | \x7c | Vertical Bar |
125 | 0o175 | 0x7d | 0b01111101 | } | } | \x7d | Closing Brace |
126 | 0o176 | 0x7e | 0b01111110 | ~ | ~ | \x7e | Equivalency Sign / Tilde |
127 | 0o177 | 0x7f | 0b01111111 | DEL |  | \x7f | Delete |