Linter Rule: No redundant alt text on <img> tags

Rule: a11y-no-redundant-image-alt

Description

Enforce that <img> alt attributes do not contain the words "image" or "picture".

Rationale

Screen readers already announce <img> elements as images. Including words like "image" or "picture" in the alt attribute is redundant and creates a repetitive experience for users relying on assistive technologies (e.g., "image, image of a sunset").

Examples

✅ Good

<img src="/sunset.jpg" alt="A sunset over the ocean">

<img src="/logo.png" alt="Company logo">

<img src="/decorative.png" alt="">

🚫 Bad

<img src="/sunset.jpg" alt="image of a sunset">

<img src="/logo.png" alt="picture of the company logo">

References

• WCAG 2.1: Non-text Content
• Deque: Alt text should not use the word "image", "picture", or "photo"