The HTML aria-required attribute
The aria-required="true" attribute tells assistive technology that a field must be completed before a form is submitted. Prefer the native required attribute on form controls; use aria-required on custom widgets.
Overview
The aria-required attribute indicates that user input is required on a widget before submission.
It is a widget property: a declaration about the widget that is normally set once, rather than a state that changes as the user interacts. Because ARIA does nothing on its own, keep it accurate and update it in JavaScript if the widget's behavior does change; a stale value is worse than none. And wherever a native element already expresses the same thing (a <textarea> for multi-line input, the required or readonly attribute, a native multiple select), use that instead.
Like all ARIA, aria-required changes only the accessibility tree (what assistive technology perceives), never the element's behavior or appearance. The first rule of ARIA applies: if a native HTML element or attribute conveys this, use that instead, and only reach for ARIA when nothing native fits.
Syntax
<div role="textbox" aria-required="true"> … </div>Values
| Value |
|---|
| true | false |
Example
<label id="name-label">Name</label>
<div role="textbox" contenteditable="true" aria-labelledby="name-label" aria-required="true"></div>Best practices
- Follow the first rule of ARIA: use a native HTML element or attribute that conveys this where one exists, rather than adding ARIA.
- Set it to match the behavior you actually implement, and change it only if that behavior changes.
- Use the matching native attribute where one exists (
required,readonly,multiple) instead of the ARIA version. - Set it only on an element whose role actually supports this property.