Skip to main content

img-req-alt

An <img> without an alt attribute is essentially invisible to assistive/accessibility technology (i.e. screen readers). In order to ensure that screen readers can provide useful information, we need to ensure that all <img> elements have an alt attribute specified.

Options​

Possible values :

  • true: Each img tag must have a non-empty alt property.
  • "allownull": Each img tag must have an alt property with a value, but value may be null (equal to ""). ⚠️ consider not using this setting as it's bad for accessibility, use role="presentation" instead
  • false: No restriction

The following patterns are considered violations:

<img src="cat.png">

The following patterns are not considerd violations:

<img src="cat.png" alt="picture of cat">

References​