Complete ASCII Table

Standard & Extended ASCII Character Reference

Standard ASCII Table (0-127)

Decimal Hexadecimal Binary HTML Character Description

Extended ASCII Table (128-255)

Table updated with UTF-8 encoding
Decimal Hexadecimal Binary HTML Character Description

About ASCII

ASCII (American Standard Code for Information Interchange) is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices.

Standard ASCII (0-127):

  • 7-bit character encoding
  • First 32 characters (0-31) are control characters
  • Characters 32-127 are printable characters
  • Includes digits, uppercase and lowercase letters, and punctuation

Extended ASCII (128-255):

  • Uses 8 bits per character (compared to 7 bits for standard ASCII)
  • Different encodings support different character sets for the extended range
  • Common encodings include ISO-8859 series, Windows code pages, and UTF-8
  • UTF-8 has become the standard for modern applications

Current Encoding: UTF-8

UTF-8 is a variable-width character encoding capable of encoding all valid Unicode code points. It's the dominant encoding for the web and is backward compatible with ASCII.