About this tool
A searchable reference for all 128 ASCII codes — decimal, hexadecimal, octal, the character and control-code names — right in your browser.
Frequently asked questions
What are codes 0–31?
They are non-printable control codes shown by their standard names, such as NUL, TAB, LF and CR.
How does search work?
Type a code in any base, a character, or part of a name to filter the table as you go.