Free online HTML entity converter. Encode special characters to HTML entities or decode entities back to original characters. Supports named entities, decimal and hex numeric entities. Pure frontend, no server upload. Perfect for web development and content security.
Enter Content: Type, paste, or upload the content you want to process. All processing happens locally in your browser — no data is uploaded to any server.
Configure Options: Adjust available options and settings to customize the output format.
Get Results: Copy the result or download the file once processing is complete. All processing is done locally — no data is uploaded to any server.
HTML entity encoding replaces special HTML characters (like <, >, &, ", ') with their corresponding entity names or numeric codes. This prevents XSS (Cross-Site Scripting) attacks and ensures content is displayed safely. For example, < becomes < and & becomes &.
Named entities use readable names (like for non-breaking space, © for copyright). Numeric entities use Unicode code points (like also for non-breaking space) and can represent any Unicode character. This tool defaults to named entities and supports hex numeric entities.
Yes. Browsers automatically decode HTML entities back to characters for display. For example, if HTML source contains &, the browser shows &. Entity encoding is primarily for security and compatibility at the HTML source level — end users see normal characters.
① User-submitted content needs safe display (comments, forums, search) ② Displaying HTML code examples on a web page ③ Passing special characters in URL parameters ④ Ensuring correct handling of special characters in XML/HTML documents ⑤ Publishing code-containing content in CMS systems
No. Everything runs locally in your browser. All HTML entity encoding and decoding operations happen on your device. Your input never leaves your computer — the tool works even without internet connection.