ASCII Control Characters Reference for Codes 0–31 and 127
Use this ASCII control characters reference to look up the 33 nonprinting ASCII control characters: codes 0–31 and 127. For each entry, compare its caret notation, the Ctrl-key combination that produces it, its C escape sequence, and a description of what it does. Search or scroll the table, then copy the value you need with one click.
This ASCII control characters reference helps you look up the 33 nonprinting characters in the ASCII control-character range: codes 0–31 and 127. Instead of relying on memory, use the table to check a character's code, notation, and described behavior. Search or scroll to find an entry, then copy the value with one click.
Each entry shows the character's caret notation, the Ctrl-key combination that produces it, its C escape sequence, and what it does. These representations make the same control character easier to recognize in different contexts: a caret form such as ^C, a keyboard combo, or a C escape. The reference presents those details together so you can compare them before copying the value you need.
Control characters are nonprinting values, so they may not appear like ordinary visible text. Their caret notation, keyboard combinations, and C escape sequences provide readable ways to refer to them. This reference is useful when you need to identify a code, check a notation you remember only partially, or avoid retyping a value incorrectly.
The reference runs entirely in your browser. Your input is processed on your own device, and nothing is uploaded, stored, or sent to a server. After the page has loaded, it works without a connection, so you can use it offline. Developers, DevOps engineers, and anyone working with text or documentation can quickly look up and copy control-character details.
Step 1: Search or scroll the control character table to find the entry you need.
Step 2: Check the character's code and description to confirm you have the right value.
Step 3: Compare its caret notation, Ctrl-key combo, and C escape sequence.
Step 4: Copy the value with one click instead of retyping it.
Use case: Look up an ASCII control character without leaving your editor, then copy its value when needed.
Use case: Check the exact spelling of a caret notation or C escape sequence you only half-remember.
Use case: Compare a control character's Ctrl-key combo with its caret notation when documenting keyboard input.
Use case: Identify what a nonprinting character does by checking its description in the reference.
Use case: Use the control character table while reading or writing technical documentation that mentions ASCII codes.
Use case: Confirm whether a value is one of the control characters in the codes 0–31 and 127 range.