Extended ASCII / Latin-1 Character Lookup and Guide
Use this Extended ASCII / Latin-1 reference to look up values from 128 to 255, check characters and HTML entities, and copy a value with one click. “Extended ASCII” can refer to ISO-8859-1 / Latin-1 or Windows-1252, which assigns different characters to much of the 128–159 range. Toggle the comparison to see the difference.
The Extended ASCII / Latin-1 lookup is a browser-based reference for checking values from 128 to 255. Search or scroll the table to find a character, check its corresponding value, and copy it with one click. The reference also covers C1 controls, the Latin-1 Supplement, and HTML entities.
The tool highlights an important difference: “Extended ASCII” can mean ISO-8859-1 / Latin-1 or Windows-1252. ISO-8859-1 is the standard Latin-1 encoding, where the 128–159 range contains C1 control codes. Windows-1252 uses much of that range for printable characters, including the euro sign and curly quotes. Toggle the comparison to see how the two interpretations differ.
Latin-1 and Windows-1252 are character encodings, while HTML entities are a way to represent characters in HTML. Looking up a character and its value can help you identify text that displays unexpectedly or choose the right character for a file or web page. The comparison is useful because the same numeric value in the 128–159 range can represent a control code in Latin-1 or a different character in Windows-1252.
The lookup runs entirely in your browser: no data is sent to a server. It works offline once the page has loaded, so you can continue checking the reference without an internet connection. Developers, DevOps engineers, and anyone handling legacy text can use it to verify character values, compare encoding conventions, and copy entries when needed.
Step 1: Search the table or scroll through it to find the character, code, or value you need.
Step 2: Check the matching entry, including its code and HTML entity where shown, before using it.
Step 3: Toggle the comparison to check how ISO-8859-1 / Latin-1 and Windows-1252 differ.
Step 4: Copy the value with one click, then paste it into your editor or another document.
Use case: Look up an Extended ASCII / Latin-1 value without leaving your editor, so you can check a character while working on code or text.
Use case: Check the spelling of a character you half-remember by searching or scrolling the reference table.
Use case: Copy a correct character or value instead of retyping it from memory.
Use case: Compare ISO-8859-1 / Latin-1 with Windows-1252 when a character in the 128–159 range looks different from what you expect.
Use case: Inspect C1 controls and the Latin-1 Supplement when you need to identify a value in the 128–255 range.
Use case: Find an HTML entity associated with a character when preparing or checking HTML text.