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ASCII Table & Character Codes

Full ASCII table (0–127) with decimal, hex, octal, binary and HTML codes — or look up any character.

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What is the ASCII code of A?

In ASCII, uppercase A is 65 (hex 0x41, binary 01000001) and lowercase a is 97 (0x61). ASCII assigns the numbers 0–127 to English letters, digits, punctuation and 33 control codes such as line feed (10) and carriage return (13).

Handy facts

  • Digits 0–9 are codes 48–57; uppercase A–Z 65–90; lowercase a–z 97–122.
  • Lowercase = uppercase + 32 (one bit of difference).
  • Windows line endings are CR LF (13 10); Linux and macOS use LF (10).
  • Codes above 127 are not ASCII — web pages use Unicode (UTF-8).

Frequently asked questions

What is extended ASCII?

Various 8-bit code pages (128–255) such as Windows-1252; they differ between systems, which is why UTF-8 replaced them.

Can I look up emojis?

Yes, type any character to see its Unicode code point.

What is code 0?

NUL, the null character, used to end strings in C.