What is HTML Entities?
HTML entities are escape sequences for reserved or special characters in HTML. For example, < represents <, > represents >, & represents &. Entities prevent interpretation issues (e.g., < in text being parsed as a tag) and allow displaying characters not on the keyboard. Named entities (e.g., , ©) and numeric entities ( ,  ) exist. Encoding converts characters to entities; decoding reverses it. Used when displaying user input safely or including special symbols.