An HTML Encoder is a tool used to convert special characters into their HTML-safe equivalents. This process is crucial when embedding content into web pages to ensure that browsers interpret the code correctly. For example, characters like <, >, &, or even quotes (") may have special meanings in HTML and could be misinterpreted if not properly encoded. The encoder replaces these characters with HTML entities, such as < for < or > for >. This is particularly important for user-generated content, like comments or form submissions, to prevent errors or security risks, such as cross-site scripting (XSS). An HTML Encoder ensures that the content is displayed as intended by the user while maintaining the integrity of the website’s structure. For developers, using an HTML Encoder helps keep web applications safe and functional, avoiding unintended behavior or vulnerabilities.