ASCII Table (0–127)
Every code point in classic 7-bit ASCII, with its decimal and hex value, the visible character, and a name for control codes.
ASCII maps 128 numbers (0–127) to characters. Codes 0–31 are control characters — they do not print anything, they instruct the terminal or the system (form feed, carriage return, bell…). Code 32 is the space, 33–126 are the printable glyphs you type, and 127 is Delete.
The table is read as the numeric value of a byte. That is why 'A' is 65 in decimal (0x41), 'a' is 97 (0x61) — a lowercase letter is always its uppercase sibling plus 32. Extended characters (é, ü, …) live beyond ASCII in Latin-1 or UTF-8.
| Dec | Hex | Char | Name / meaning |
|---|---|---|---|
| 0 | 0x00 | Null | |
| 1 | 0x01 | Start of Heading | |
| 2 | 0x02 | Start of Text | |
| 3 | 0x03 | End of Text | |
| 4 | 0x04 | End of Transmission | |
| 5 | 0x05 | Enquiry | |
| 6 | 0x06 | Acknowledgement | |
| 7 | 0x07 | Bell | |
| 8 | 0x08 | Backspace | |
| 9 | 0x09 | ⇥ | Tab |
| 10 | 0x0A | Line Feed | |
| 11 | 0x0B | Vertical Tab | |
| 12 | 0x0C | Form Feed | |
| 13 | 0x0D | Carriage Return | |
| 14 | 0x0E | Shift Out | |
| 15 | 0x0F | Shift In | |
| 16 | 0x10 | Data Link Escape | |
| 17 | 0x11 | Device Control 1 | |
| 18 | 0x12 | Device Control 2 | |
| 19 | 0x13 | Device Control 3 | |
| 20 | 0x14 | Device Control 4 | |
| 21 | 0x15 | Negative Acknowledge | |
| 22 | 0x16 | Synchronous Idle | |
| 23 | 0x17 | End of Transmission Block | |
| 24 | 0x18 | Cancel | |
| 25 | 0x19 | End of Medium | |
| 26 | 0x1A | Substitute | |
| 27 | 0x1B | Escape | |
| 28 | 0x1C | File Separator | |
| 29 | 0x1D | Group Separator | |
| 30 | 0x1E | Record Separator | |
| 31 | 0x1F | Unit Separator | |
| 32 | 0x20 | ␣ | Space |
| 33 | 0x21 | ! | Printable character |
| 34 | 0x22 | " | Printable character |
| 35 | 0x23 | # | Printable character |
| 36 | 0x24 | $ | Printable character |
| 37 | 0x25 | % | Printable character |
| 38 | 0x26 | & | Printable character |
| 39 | 0x27 | ' | Printable character |
| 40 | 0x28 | ( | Printable character |
| 41 | 0x29 | ) | Printable character |
| 42 | 0x2A | * | Printable character |
| 43 | 0x2B | + | Printable character |
| 44 | 0x2C | , | Printable character |
| 45 | 0x2D | - | Printable character |
| 46 | 0x2E | . | Printable character |
| 47 | 0x2F | / | Printable character |
| 48 | 0x30 | 0 | Printable character |
| 49 | 0x31 | 1 | Printable character |
| 50 | 0x32 | 2 | Printable character |
| 51 | 0x33 | 3 | Printable character |
| 52 | 0x34 | 4 | Printable character |
| 53 | 0x35 | 5 | Printable character |
| 54 | 0x36 | 6 | Printable character |
| 55 | 0x37 | 7 | Printable character |
| 56 | 0x38 | 8 | Printable character |
| 57 | 0x39 | 9 | Printable character |
| 58 | 0x3A | : | Printable character |
| 59 | 0x3B | ; | Printable character |
| 60 | 0x3C | < | Printable character |
| 61 | 0x3D | = | Printable character |
| 62 | 0x3E | > | Printable character |
| 63 | 0x3F | ? | Printable character |
| 64 | 0x40 | @ | Printable character |
| 65 | 0x41 | A | Printable character |
| 66 | 0x42 | B | Printable character |
| 67 | 0x43 | C | Printable character |
| 68 | 0x44 | D | Printable character |
| 69 | 0x45 | E | Printable character |
| 70 | 0x46 | F | Printable character |
| 71 | 0x47 | G | Printable character |
| 72 | 0x48 | H | Printable character |
| 73 | 0x49 | I | Printable character |
| 74 | 0x4A | J | Printable character |
| 75 | 0x4B | K | Printable character |
| 76 | 0x4C | L | Printable character |
| 77 | 0x4D | M | Printable character |
| 78 | 0x4E | N | Printable character |
| 79 | 0x4F | O | Printable character |
| 80 | 0x50 | P | Printable character |
| 81 | 0x51 | Q | Printable character |
| 82 | 0x52 | R | Printable character |
| 83 | 0x53 | S | Printable character |
| 84 | 0x54 | T | Printable character |
| 85 | 0x55 | U | Printable character |
| 86 | 0x56 | V | Printable character |
| 87 | 0x57 | W | Printable character |
| 88 | 0x58 | X | Printable character |
| 89 | 0x59 | Y | Printable character |
| 90 | 0x5A | Z | Printable character |
| 91 | 0x5B | [ | Printable character |
| 92 | 0x5C | \ | Printable character |
| 93 | 0x5D | ] | Printable character |
| 94 | 0x5E | ^ | Printable character |
| 95 | 0x5F | _ | Printable character |
| 96 | 0x60 | ` | Printable character |
| 97 | 0x61 | a | Printable character |
| 98 | 0x62 | b | Printable character |
| 99 | 0x63 | c | Printable character |
| 100 | 0x64 | d | Printable character |
| 101 | 0x65 | e | Printable character |
| 102 | 0x66 | f | Printable character |
| 103 | 0x67 | g | Printable character |
| 104 | 0x68 | h | Printable character |
| 105 | 0x69 | i | Printable character |
| 106 | 0x6A | j | Printable character |
| 107 | 0x6B | k | Printable character |
| 108 | 0x6C | l | Printable character |
| 109 | 0x6D | m | Printable character |
| 110 | 0x6E | n | Printable character |
| 111 | 0x6F | o | Printable character |
| 112 | 0x70 | p | Printable character |
| 113 | 0x71 | q | Printable character |
| 114 | 0x72 | r | Printable character |
| 115 | 0x73 | s | Printable character |
| 116 | 0x74 | t | Printable character |
| 117 | 0x75 | u | Printable character |
| 118 | 0x76 | v | Printable character |
| 119 | 0x77 | w | Printable character |
| 120 | 0x78 | x | Printable character |
| 121 | 0x79 | y | Printable character |
| 122 | 0x7A | z | Printable character |
| 123 | 0x7B | { | Printable character |
| 124 | 0x7C | | | Printable character |
| 125 | 0x7D | } | Printable character |
| 126 | 0x7E | ~ | Printable character |
| 127 | 0x7F | | Delete |