aria-readonly

Boolean

Indicates that the user can view and navigate an element's value but not change it — unlike aria-disabled, which also blocks operation. The element still receives focus and participates normally, so it's read-only rather than inert. It applies to inputs, grids, and other editable widgets.

aria-readonly="…"

Values

true: The value is not editable, but the element is otherwise operable.
false (default): The value is editable.

Used on

Associated roles

checkbox columnheader combobox grid gridcell listbox radiogroup rowheader searchbox slider spinbutton switch textbox treegrid

Example

aria-readonly="…"

<div role="textbox" aria-readonly="true">Fixed value</div>

References

WAI-ARIA 1.2 specification
MDN Web Docs