File Under: Glossary

ISO Entities

ISO (International Standards Organization) entities, sometimes referred to as character entities, are a group of ASCII characters that can be used in HTML to display special characters. For example, you can’t simply type the registered trademark symbol ® from your keyboard since it’s not a standard ASCII character; it’ll show up as garbage on your web page. But if you use the ISO entity equivalent, the web browser will be able to interpret the character correctly.

For example, the umlaut ¨ appears if you write
¨
in your HTML code.