HTMLInputElement: alt 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 alt property of the HTMLInputElement interface defines the textual label for the button for users and user agents who cannot use the image. It reflects the <input> element's alt attribute.

The alt property is valid for the image type only. It should be a non-empty string giving the label that would be appropriate for an equivalent button if the image was unavailable.

Value

A string.

Examples

js
const inputElement = document.getElementById("imageButton");
console.log(inputElement.alt);
inputElement.alt = "A much better description";

Specifications

Specification

HTML
# dom-input-alt

Browser compatibility

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This page was last modified on Apr 10, 2025 by MDN contributors.

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