Text to ASCII Converter
Convert plain text characters into their corresponding decimal ASCII numerical codes instantly.
Plain Text Input
ASCII Codes Output
ASCII Quick Reference Chart
Common character sets and their corresponding decimal codes on the standard ASCII index:
What is ASCII?
ASCII stands for American Standard Code for Information Interchange. Formulated in 1963, it was the first major universal coding system created to allow different teleprinters, telegraphs, and computers to share text. ASCII translates English characters into numbers ranging from 0 to 127.
These 128 codes include lowercase letters (a-z), uppercase letters (A-Z), numbers (0-9), punctuation marks, and control characters (like newlines or backspaces). For example, capital letter A has the ASCII value 65, while lowercase a is 97.
Difference between ASCII and Unicode / UTF-8
Standard ASCII only works for basic English characters. It uses 7 bits per character, meaning it has a maximum limit of 128 unique characters. As computer systems expanded globally, this became a major issue since other alphabets and symbols could not be coded. This led to the development of Unicode, which can map over a million characters. UTF-8 was designed to be completely backward-compatible with ASCII—the first 128 character codes in UTF-8 are identical to standard ASCII.
Real-time translation
This converter processes each character you type by looking up its UTF-8 integer index (which matches ASCII for standard characters) and displays them as a space-separated string of integers. It is fully client-side and performs instantly.