ASCII Character Table
Complete ASCII character table with decimal, hexadecimal, octal, and binary values. Filter by control characters, printable characters, or extended ASCII. Click any character to copy.
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| Dec | Hex | Oct | Bin | Char | HTML | Description |
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Frequently asked
questions
ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numerical values 0–127 to English letters, digits, punctuation, and control characters. Extended ASCII uses 128–255 for additional symbols.
Control characters (codes 0–31 and 127) don't represent printable symbols — they control behavior: 10 is newline (\n), 13 is carriage return (\r), 9 is tab (\t), 8 is backspace, 27 is ESC.
ASCII covers 128 characters (0–127). Unicode is a superset covering over 140,000 characters across all writing systems. UTF-8 is backward compatible with ASCII for codes 0–127.