Encode and decode HTML entities instantly. Convert special characters to named or numeric HTML entities and back. Pure client-side, no data sent to servers.
HTML encoding converts special characters into HTML entities that can be safely displayed in web pages. For example, < becomes <, > becomes >, and & becomes &. This is essential when you need to display code snippets, prevent XSS attacks, or ensure special characters render correctly in HTML documents. Our tool supports named entities, decimal numeric entities, and hexadecimal numeric entities.
HTML encoding is the process of converting special characters into HTML entities that browsers can display correctly without interpreting them as HTML markup. For example, the less-than sign < is encoded as < so it appears as < in the rendered page rather than being interpreted as the start of an HTML tag.
Named entities use memorable names like < for <, > for >, and & for &. Decimal entities use numeric codes like < for <. Hexadecimal entities use hex codes like < for <. All three represent the same characters and are valid in HTML. Named entities are more readable, while numeric entities can represent any Unicode character.
Use HTML encoding when you need to display special characters in HTML documents without them being interpreted as markup. Common use cases include: displaying code snippets, showing HTML examples, preventing XSS attacks by sanitizing user input, and ensuring special characters like quotes and ampersands render correctly.
Yes, all processing happens entirely in your browser. No data is sent to any server, making it completely safe for sensitive information like passwords, API keys, or private HTML content.