HTML encoder / decoder

HTML encoding and decoding refers to the process of converting certain characters in HTML to their corresponding HTML entities, and vice versa. This is necessary because certain characters, such as angle brackets (< and >) have special meaning in HTML and must be encoded in order to be displayed as text on a web page.

For example, the less than symbol < must be encoded as < in HTML, and the greater than symbol > must be encoded as >. This allows the HTML to be properly interpreted by the web browser and displayed as intended.

HTML decoding is the opposite process, where encoded characters are converted back to their original representation. This is necessary when HTML with encoded characters is received by the web browser, so that it can be properly interpreted and displayed.

Overall, HTML encoding and decoding is an important part of the process of creating and displaying HTML content, and ensures that special characters and other non-allowed characters can be properly included in HTML.