cHTML stands for compact HTML and is a version of HTML used for small devices such as cellular phones or PDAs and only supports a subset of the HTML language. Features such as tables, image maps, font styles/variations, background colors, background images, frames, and style sheets are not supported. In cHTML, basic operations are performed by a combination of four buttons rather than via cursor movement, which is one reason why a number of features (like image maps) are not supported.
CHTML was developed for i-mode devices by Access Company, Ltd. It is used more rarely now than in the past, due to the advancements made with mobile phones and tablets which allow many of them to support most or all of the features available in standard HTML.