Image alt tags checker

What is an Image Alt Tags Checker?

The Image Alt Tags Checker scans every <img> element on a webpage and reports whether it has a descriptive alt attribute set, listing every image that is missing one.

Why Alt Text Matters

• Accessibility — Screen readers rely entirely on alt text to describe images to visually impaired users; missing alt text makes an image invisible to them.
• SEO — Search engines cannot "see" an image directly; alt text is one of the main signals used for image search rankings.
• Graceful degradation — If an image fails to load, the alt text is shown in its place, preserving the meaning of the page.