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ASCII Table
The full ASCII table with decimal, hex, octal, binary and HTML entities.
Quick Tool Overview
The ASCII Table lists all 128 codes — with the extended Latin-1 range as an option — in decimal, hex, octal and binary, with HTML entities, escape forms and proper names for every control character.
- What it does
- Shows the full ASCII chart with every numeric form
- You give it
- A search term, or nothing at all
- You get back
- A filtered table of codes and representations
- Best for
- Looking up a code, a control character or an entity
About the ASCII Table
The full 128-character ASCII set in one searchable table, with each character shown in decimal, hexadecimal, octal and binary alongside its HTML entity and escape forms. The extended range from 128 to 255 is included as an optional second half.
The control characters — the first 32 codes, plus DEL — are named and described rather than left blank, which is the part most tables get wrong and the part you are usually looking one up for. Search filters the table live by character, by name or by any of the numeric forms, so typing "9", "09", "tab" or "HT" all find the same row. Click any row to copy the value you need.
Key features of the ASCII Table
Control characters named
The first 32 codes and DEL get their abbreviations and meanings, which is what most tables leave blank and what you are usually looking for.
Every base at once
Decimal, hexadecimal, octal and binary on the same row, so no second conversion step is needed.
Search anything
Type a character, a name, or a number in any base — "9", "09", "tab" and "HT" all find the same row.
Escape forms included
The HTML entity, the CSS escape and the JavaScript escape for every code.
Extended range optional
Codes 128 to 255 in the Latin-1 assignment, clearly marked as not being ASCII proper.
How to use the ASCII Table
-
1
Search or browse
Type a character, a name or a number in any base to filter the table.
-
2
Read across the row
Decimal, hex, octal, binary, the character, its HTML entity and its escape forms.
-
3
Include the extended range
Turn on codes 128 to 255 when you are working with Latin-1 rather than pure ASCII.
-
4
Copy what you need
Click any value in a row to copy it.
Frequently asked questions
128, numbered 0 to 127. The first 32 and code 127 are control characters; 33 to 126 are the printable ones. Anything above 127 is not ASCII, whatever a font may display.
They came from teleprinter control. A few still matter constantly — line feed, carriage return, tab, null and escape — while the rest are historical curiosities.
Not one standard, no. Codes 128 to 255 differ between Latin-1, Windows-1252, code page 437 and others, which is exactly why text from one system arrives as mojibake on another. The table shows the Latin-1 assignment.
The first 128 Unicode code points are identical to ASCII, and in UTF-8 they encode as a single byte with the same value. That is why ASCII text is valid UTF-8 unchanged.
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