HTML Entity Converter

The five reserved characters are the ampersand, less-than sign, greater-than sign, double quote, and apostrophe. Escaping the ampersand and angle brackets is the most important, since they can be read as the start of markup and break your page or allow injection.

Because every entity begins with an ampersand. If you escaped angle brackets before the ampersand, you could double-encode existing entities — turning '<' into '<'. Encoding the ampersand first avoids that, and this tool does it in the correct order.

It converts every character above standard ASCII — accented letters, symbols, emoji — into a numeric HTML entity like 'é'. That guarantees the text displays correctly even in environments with the wrong character encoding, at the cost of readability in the source.