ASCII Reference Table
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| Dec | Hex | Oct | Binary | Char | Description |
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About ASCII
ASCII (American Standard Code for Information Interchange) is a character encoding standard that uses 7 bits to represent 128 characters: 33 control characters (0-31 and 127) and 95 printable characters (32-126).
The printable characters include digits 0-9 (codes 48-57), uppercase letters A-Z (65-90), lowercase letters a-z (97-122), and various punctuation and symbols.
Common Uses
0x00 (NUL) — String terminator in C
0x0A (LF) — Unix line ending
0x0D (CR) — Carriage return, part of Windows line ending (CRLF)
0x09 (TAB) — Horizontal tab
0x1B (ESC) — Start of escape sequences (ANSI codes)
0x20 (Space) — First printable character
0x7F (DEL) — Delete character