Ascii Table, Ascii Codes, Ascii Chart, Ascii Characters, Ascii symbols with decimal, binary, octal, and hex conversions. Ascii stands for American Standard Code for Information Interchange. It is a character encoding standard used in computers. As you may be aware that Computers can only understand numbers. ASCII character encoding is a way to represent the 128 English characters as numbers. These characters include Alphabets, numbers, special characters, and some unprintable control characters.