HTML Encoder/Decoder
About HTML Encoder/Decoder
HTML encoding is the process of converting special characters into their corresponding HTML entities. Characters like angle brackets (< and >), ampersands (&), and quotation marks have special meaning in HTML, so they must be encoded when you want them to appear as literal text rather than being interpreted as markup.
This free online HTML encoder and decoder tool instantly converts between plain text and HTML-encoded format. Whether you need to safely display code snippets on a webpage, sanitize user input for security purposes, or decode HTML entities from an external source, this tool handles both named entities (like <) and numeric entities (like <) effortlessly.
HTML encoding is crucial for web security, particularly in preventing Cross-Site Scripting (XSS) attacks. When user-generated content is displayed on a webpage without proper encoding, malicious scripts could be injected and executed. By encoding special characters, you ensure that any potentially harmful code is rendered as harmless text instead of being executed by the browser.
All processing happens locally in your browser using JavaScript. Your data never leaves your device, making this tool safe for encoding sensitive content like API responses, configuration data, or any text containing special characters that needs to be displayed safely in HTML documents.