Character Map

A searchable table of the 128 ASCII codes (decimal, hex, control-character names), and an inspector that gives each character of a text its code point, decimal value, UTF-8 bytes and Unicode block (some neighboring blocks grouped). ASCII was first published as ASA X3.4-1963; UTF-8, specified in RFC 3629, encodes every code point in one to four bytes and keeps ASCII as single bytes.

• IEEE History Center, “Milestones: American Standard Code for Information Interchange ASCII, 1963”
• RFC 3629, UTF-8, a transformation format of ISO 10646 (2003)
• The Unicode Standard