ariarequiredtrue

aria-required is a WAI-ARIA attribute used to indicate that user input is required on a user interface element. When set to true, assistive technologies such as screen readers may announce that the field is required. This attribute provides accessibility semantics for AT users, independent of native form validation.

In practice, aria-required is used on form controls and on custom widgets that accept text input, including elements with roles such as textbox, combobox, or other input-like controls. The common syntax is aria-required="true" or aria-required="false"; some implementations may also rely on the presence of the attribute. A typical example is: <input type="text" aria-required="true" />. It is important to note that aria-required communicates a requirement to AT but does not enforce validation in the browser.

Guidance and considerations: aria-required should be used to augment, not replace, native validation when appropriate. It should be paired with clear labeling and accessible instructions to explain why input is required. For native form controls, using the required attribute remains the standard method for browser-driven validation and can be complemented with aria-required for AT consistency. On custom widgets, ensure that the required state is programmatically exposed and consistently announced by assistive technologies.

Limitations and compatibility: Support for aria-required is strong in modern screen readers, but behavior can vary across AT and browsers. Do not rely solely on aria-required to convey requiredness; provide visible labels and, where feasible, native validation cues. Related attributes include aria-invalid, aria-describedby, and roles defining input widgets.