ASCII Table
All 128 ASCII characters with their decimal, hex, octal and binary values. Type a number, character or name (like ESC) to filter.
| Dec | Hex | Oct | Binary | Char | Description |
|---|
About ASCII
ASCII (American Standard Code for Information Interchange) maps the numbers 0–127 to characters — letters, digits, punctuation, and a set of invisible "control characters" like tab (9), line feed (10) and carriage return (13). It's the foundation that modern encodings such as UTF-8 are built on: the first 128 code points of Unicode are identical to ASCII.
This table shows each code in decimal, hexadecimal, octal and binary, which is handy when you're debugging text encoding, escape sequences, or low-level data. Codes 0–31 and 127 are control characters (shown by name); 32–126 are printable. It all renders locally in your browser.