About ascii table
The ASCII table lists all 128 basic characters with their decimal, hex, octal and binary codes. It is a classic reference for programmers and students.
How it is organised
- 0 to 31 and 127 are control characters such as newline and tab.
- 32 is the space; 48 to 57 are the digits 0 to 9.
- 65 to 90 are capitals A to Z; 97 to 122 are lowercase a to z.
Use the search
Type a character or a code to jump straight to its row.
How to read it
Each row shows a character with its decimal code, hex code, octal code and binary code. For example the letter A is 65 in decimal, 41 in hex, 101 in octal and 01000001 in binary.
Handy patterns
- The digits 0 to 9 are codes 48 to 57.
- Uppercase letters start at 65 and lowercase at 97.
- Newline is 10, carriage return is 13 and tab is 9.
