ASCII Table
Complete reference of all 128 ASCII characters with decimal, hexadecimal values and descriptions
| Dec | Hex | Oct | Char | Description |
|---|
About ASCII
What is ASCII?
ASCII (American Standard Code for Information Interchange) is a character encoding standard for electronic communication. It represents text characters using 7-bit binary numbers, giving a total of 128 possible characters (0-127).
Character Categories
ASCII characters are divided into two main groups: Control Characters (0-31 and 127) which are non-printable and used for device control, and Printable Characters (32-126) which include letters, digits, punctuation, and special symbols.
Encoding
Each ASCII character is represented by a decimal value (0-127), hexadecimal value (0x00-0x7F), and octal value (0-177). The first 32 characters (0-31) and character 127 are control characters.