Alt Text Checker

alt="" is correct, and most checkers get this wrong

An empty alt attribute means "this image carries no information, skip it". For a decorative divider or a background flourish, that is exactly right — a screen reader announcing "image" for each one is worse than silence.

Omitting the attribute entirely is different. Some screen readers then read out the filename, which is how users end up hearing "underscore h e r o dash v two dot p n g".

Tools that report alt="" as an error push people to write meaningless descriptions for decorative images, which makes the page worse. This one treats it as valid.

What good alt text does

Describe what the image conveys in context, not what it depicts in isolation. The same photo on a product page and in an article about manufacturing needs different alt text.

Keep it under about 125 characters — several screen readers cut off around there. If an image genuinely needs more explanation, it belongs in a caption or the surrounding text, where everyone can read it.

No tool can judge whether alt text is meaningful. This one checks that it exists and is not obviously junk: "image", "logo", "DSC_0421.jpg". The judgement call stays with you.

How to use it

1. Enter the page URL — Every img tag on the page gets listed.
2. Fix the missing attributes first — These are the real defects.
3. Replace placeholder alt text — Filenames and "image" tell a screen-reader user nothing.