ASCII Code Reference
ASCII (American Standard Code for Information Interchange) is a character encoding standard for electronic communication. Computers use these numbers to represent text.
1. Common Characters (Alpha & Basic Symbols)
Includes the most frequently used characters: A-Z, a-z, numbers, and basic symbols.
| Hex | Upper | Hex | Lower | Hex | Special/Num |
|---|---|---|---|---|---|
| 41 | A | 61 | a | 20 | (Space) |
| 42 | B | 62 | b | 21 | ! |
| 43 | C | 63 | c | 22 | " |
| 44 | D | 64 | d | 23 | # |
| 45 | E | 65 | e | 24 | $ |
| 46 | F | 66 | f | 25 | % |
| 47 | G | 67 | g | 26 | & |
| 48 | H | 68 | h | 27 | ' |
| 49 | I | 69 | i | 28 | ( |
| 4A | J | 6A | j | 29 | ) |
| 4B | K | 6B | k | 2A | * |
| 4C | L | 6C | l | 2B | + |
| 4D | M | 6D | m | 2C | , |
| 4E | N | 6E | n | 2D | - |
| 4F | O | 6F | o | 2E | . |
| 50 | P | 70 | p | 2F | / |
| 51 | Q | 71 | q | 30 | 0 |
| 52 | R | 72 | r | 31 | 1 |
| 53 | S | 73 | s | 32 | 2 |
| 54 | T | 74 | t | 33 | 3 |
| 55 | U | 75 | u | 34 | 4 |
| 56 | V | 76 | v | 35 | 5 |
| 57 | W | 77 | w | 36 | 6 |
| 58 | X | 78 | x | 37 | 7 |
| 59 | Y | 79 | y | 38 | 8 |
| 5A | Z | 7A | z | 39 | 9 |
2. Other Symbols & Control Characters (Extended & Control)
Contains the remaining special symbols (such as :, <, [, {) and control characters (NUL, ESC, etc.).
| Hex | Val | Hex | Val | Hex | Val |
|---|---|---|---|---|---|
| 3A | : | 00 | NUL | 11 | DC1 |
| 3B | ; | 01 | SOH | 12 | DC2 |
| 3C | < | 02 | STX | 13 | DC3 |
| 3D | = | 03 | ETX | 14 | DC4 |
| 3E | > | 04 | EOT | 15 | NAK |
| 3F | ? | 05 | ENQ | 16 | SYN |
| 40 | @ | 06 | ACK | 17 | ETB |
| 5B | [ | 07 | BEL | 18 | CAN |
| 5C | \ | 08 | BS | 19 | EM |
| 5D | ] | 09 | HT | 1A | SUB |
| 5E | ^ | 0A | LF | 1B | ESC |
| 5F | _ | 0B | VT | 1C | FS |
| 60 | ` | 0C | FF | 1D | GS |
| 7B | { | 0D | CR | 1E | RS |
| 7C | | | 0E | SO | 1F | US |
| 7D | } | 0F | SI | 7F | DEL |
| 7E | ~ | 10 | DLE |