HTMLInputElement: readOnly property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The readOnly property of the HTMLInputElement interface indicates that the user cannot modify the value of the <input>. It reflects the <input> element's readonly boolean attribute; returning true if the attribute is present and false when omitted.

Unlike a form control with a true disabled property, a true readOnly property value does not prevent the user from clicking or selecting in the control.

While the HTML readonly attribute is ignored if the type is hidden, range, color, checkbox, radio, file, submit, reset, button, and image, the readOnly property is true for these input types if the attribute is present, false otherwise.

Value

A boolean.

Examples

js
const inputElement = document.getElementById("total");
console.log(inputElement.readOnly);
inputElement.readOnly = true;

Specifications

Specification
HTML
# dom-input-readonly

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
readOnly

Legend

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Full support
Full support

See also