| Character | Decimal | Hexadecimal | Binary | C escape sequence | Description |
|---|---|---|---|---|---|
| NUL | 0 | 0x00 | 00000000 | \0 | NULL |
| SOH | 1 | 0x01 | 00000001 | Start of heading | |
| STX | 2 | 0x02 | 00000010 | Start of text | |
| ETX | 3 | 0x03 | 00000011 | End of text | |
| EOT | 4 | 0x04 | 00000100 | End of transmission | |
| ENQ | 5 | 0x05 | 00000101 | Enquiry | |
| ACK | 6 | 0x06 | 00000110 | Acknowledgement | |
| BEL | 7 | 0x07 | 00000111 | \a | Bell |
| BS | 8 | 0x08 | 00001000 | \b | Backspace |
| HT | 9 | 0x09 | 00001001 | \t | Horizontal tab |
| LF | 10 | 0x0A | 00001010 | \n | Line feed |
| VT | 11 | 0x0B | 00001011 | \v | Vertical tab |
| FF | 12 | 0x0C | 00001100 | \f | Form feed |
| CR | 13 | 0x0D | 00001101 | \r | Carriage return |
| SO | 14 | 0x0E | 00001110 | \r | Shift out |
| SI | 15 | 0x0F | 00001111 | \r | Shift in |
| DLE | 16 | 0x10 | 00010000 | Data link escape | |
| DC1 | 17 | 0x11 | 00010001 | Device control 1 | |
| DC2 | 18 | 0x12 | 00010010 | Device control 2 | |
| DC3 | 19 | 0x13 | 00010011 | Device control 3 | |
| DC4 | 20 | 0x14 | 00010100 | Device control 4 | |
| NAK | 21 | 0x15 | 00010101 | Negative acknowledgement | |
| SYN | 22 | 0x16 | 00010110 | Synchronous idle | |
| ETB | 23 | 0x17 | 00010111 | End of transmission block | |
| CAN | 24 | 0x18 | 00011000 | Cancel | |
| EM | 25 | 0x19 | 00011001 | End of medium | |
| SUB | 26 | 0x1A | 00011010 | Substitute | |
| ESC | 27 | 0x1B | 00011011 | \e | Escape |
| FS | 28 | 0x1C | 00011100 | File separator | |
| GS | 29 | 0x1D | 00011101 | Group separator | |
| RS | 30 | 0x1E | 00011110 | Record separator | |
| US | 31 | 0x1F | 00011111 | Unit separator | |
| Space | 32 | 0x20 | 00100000 | Space | |
| ! | 33 | 0x21 | 00100001 | Exclamation mark | |
| " | 34 | 0x22 | 00100010 | Quotation mark | |
| # | 35 | 0x23 | 00100011 | Hash | |
| $ | 36 | 0x24 | 00100100 | Dollar | |
| % | 37 | 0x25 | 00100101 | Percent | |
| & | 38 | 0x26 | 00100110 | Ampersand | |
| ' | 39 | 0x27 | 00100111 | Apostrophe | |
| ( | 40 | 0x28 | 00101000 | Bracket | |
| ) | 41 | 0x29 | 00101001 | Bracket | |
| * | 42 | 0x2A | 00101010 | Asterisk | |
| + | 43 | 0x2B | 00101011 | Plus | |
| , | 44 | 0x2C | 00101100 | Comma | |
| - | 45 | 0x2D | 00101101 | Hyphen-minus | |
| . | 46 | 0x2E | 00101110 | Full stop | |
| / | 47 | 0x2F | 00101111 | Forward slash | |
| 0 | 48 | 0x30 | 00110000 | Zero | |
| 1 | 49 | 0x31 | 00110001 | One | |
| 2 | 50 | 0x32 | 00110010 | Two | |
| 3 | 51 | 0x33 | 00110011 | Three | |
| 4 | 52 | 0x34 | 00110100 | Four | |
| 5 | 53 | 0x35 | 00110101 | Five | |
| 6 | 54 | 0x36 | 00110110 | Six | |
| 7 | 55 | 0x37 | 00110111 | Seven | |
| 8 | 56 | 0x38 | 00111000 | Eight | |
| 9 | 57 | 0x39 | 00111001 | Nine | |
| : | 58 | 0x3A | 00111010 | Colon | |
| ; | 59 | 0x3B | 00111011 | Semicolon | |
| ‹ | 60 | 0x3C | 00111100 | Less than | |
| = | 61 | 0x3D | 00111101 | Equals | |
| › | 62 | 0x3E | 00111110 | Greater than | |
| ? | 63 | 0x3F | 00111111 | Question mark | |
| @ | 64 | 0x40 | 01000000 | At | |
| A | 65 | 0x41 | 01000001 | Letter A | |
| B | 66 | 0x42 | 01000010 | Letter B | |
| C | 67 | 0x43 | 01000011 | Letter C | |
| D | 68 | 0x44 | 01000100 | Letter D | |
| E | 69 | 0x45 | 01000101 | Letter E | |
| F | 70 | 0x46 | 01000110 | Letter F | |
| G | 71 | 0x47 | 01000111 | Letter G | |
| H | 72 | 0x48 | 01001000 | Letter H | |
| I | 73 | 0x49 | 01001001 | Letter I | |
| J | 74 | 0x4A | 01001010 | Letter J | |
| K | 75 | 0x4B | 01001011 | Letter K | |
| L | 76 | 0x4C | 01001100 | Letter L | |
| M | 77 | 0x4D | 01001101 | Letter M | |
| N | 78 | 0x4E | 01001110 | Letter N | |
| O | 79 | 0x4F | 01001111 | Letter O | |
| P | 80 | 0x50 | 01010000 | Letter P | |
| Q | 81 | 0x51 | 01010001 | Letter Q | |
| R | 82 | 0x52 | 01010010 | Letter R | |
| S | 83 | 0x53 | 01010011 | Letter S | |
| T | 84 | 0x54 | 01010100 | Letter T | |
| U | 85 | 0x55 | 01010101 | Letter U | |
| V | 86 | 0x56 | 01010110 | Letter V | |
| W | 87 | 0x57 | 01010111 | Letter W | |
| X | 88 | 0x58 | 01011000 | Letter X | |
| Y | 89 | 0x59 | 01011001 | Letter Y | |
| Z | 90 | 0x5A | 01011010 | Letter Z | |
| [ | 91 | 0x5B | 01011011 | Square bracket | |
| \ | 92 | 0x5C | 01011100 | Backslash | |
| ] | 93 | 0x5D | 01011101 | Square bracket | |
| ^ | 94 | 0x5E | 01011110 | Caret | |
| _ | 95 | 0x5F | 01011111 | Underscore | |
| ` | 96 | 0x60 | 01100000 | Backtick | |
| a | 97 | 0x61 | 01100001 | Letter a | |
| b | 98 | 0x62 | 01100010 | Letter b | |
| c | 99 | 0x63 | 01100011 | Letter c | |
| d | 100 | 0x64 | 01100100 | Letter d | |
| e | 101 | 0x65 | 01100101 | Letter e | |
| f | 102 | 0x66 | 01100110 | Letter f | |
| g | 103 | 0x67 | 01100111 | Letter g | |
| h | 104 | 0x68 | 01101000 | Letter h | |
| i | 105 | 0x69 | 01101001 | Letter i | |
| j | 106 | 0x6A | 01101010 | Letter j | |
| k | 107 | 0x6B | 01101011 | Letter k | |
| l | 108 | 0x6C | 01101100 | Letter l | |
| m | 109 | 0x6D | 01101101 | Letter m | |
| n | 110 | 0x6E | 01101110 | Letter n | |
| o | 111 | 0x6F | 01101111 | Letter o | |
| p | 112 | 0x70 | 01110000 | Letter p | |
| q | 113 | 0x71 | 01110001 | Letter q | |
| r | 114 | 0x72 | 01110010 | Letter r | |
| s | 115 | 0x73 | 01110011 | Letter s | |
| t | 116 | 0x74 | 01110100 | Letter t | |
| u | 117 | 0x75 | 01110101 | Letter u | |
| v | 118 | 0x76 | 01110110 | Letter v | |
| w | 119 | 0x77 | 01110111 | Letter w | |
| x | 120 | 0x78 | 01111000 | Letter x | |
| y | 121 | 0x79 | 01111001 | Letter y | |
| z | 122 | 0x7A | 01111010 | Letter z | |
| { | 123 | 0x7B | 01111011 | Curly bracket | |
| | | 124 | 0x7C | 01111100 | Vertical bar | |
| } | 125 | 0x7D | 01111101 | Curly bracket | |
| ~ | 126 | 0x7E | 01111110 | Tilde | |
| DEL | 127 | 0x7F | 01111111 | Delete |