Your alt text exists.
Is it true?

Other checkers read your HTML and confirm the alt attribute is there. This one downloads the actual image and checks whether the description matches what's in the picture.

Free · No signup · Verifies the first 6 described images on the page

Why "has alt text" isn't the same as "has good alt text"

What other checkers verify

  • The alt attribute is present
  • It isn't empty on a meaningful image
  • It isn't suspiciously short or long
  • It doesn't look like a filename

All of this is done by reading text. The image file is never opened.

What this checker verifies

  • The description is true of the image
  • It isn't describing a different picture entirely
  • It isn't so generic it conveys nothing
  • Decorative images aren't being narrated

Requires downloading the image and looking at it. That costs money per image, which is why it's capped here.

Being precise about the claim

Some tools do more than presence-checking: Sitechecker flags descriptions it considers insufficient, and AudioEye states it scans for incorrect alt text. What we haven't found anywhere else is a tool that fetches the image file itself and compares it against the words. That's the specific thing this does.

Questions

What counts as bad alt text?

Four failure modes, and this tool separates them. Inaccurate: the words describe something the image doesn't show, often a copy-paste from another product. Vague: technically true but useless, like "product" on a photo of a specific boot. Filename: IMG_4021.jpg or banner2. Decorative mismatch: a description on an image that carries no information, forcing screen reader users to sit through noise. Our alt text guide covers how to fix each.

Do you store my images?

No. Images are fetched, passed to the vision model for the verdict, and discarded when the request ends. Nothing is written to disk and there's no database behind this tool.

Why only six images?

Because each check downloads the page's images and sends every one to a vision model. Tools that check alt text by reading HTML only can run without limits; this one opens the pictures. Paid plans raise the cap and work through your pages in bulk.

What if the page needs JavaScript to show its images?

We read the HTML your server sends, so images injected later by JavaScript won't be seen. If your site is a single-page app and the result looks empty, that's why. Server-rendered and static sites work as expected.

Is the AI ever wrong?

Yes, and we tune it to err toward saying nothing rather than crying wolf, because a false accusation wastes your time and costs us your trust. Treat every verdict as a prompt to look at the image yourself. You are the final judge of what your image communicates in context.

Alt text is one check of many

The free scan also checks form labels, headings, link text, page language, zoom settings and more. It runs 16 rule-based checks across up to three pages.

Scan my site for free