Every image on the page
Content images, logos and icons, with the file each one loads.
Free SEO tool
Find every image on a page that is missing alt text
Enter a page address and get a list of its images with the alt attribute of each and the length of the text. Missing or empty alt text costs you image search traffic, accessibility compliance and a ranking signal Google still reads.
Image Alt Text Test
Run the tool above and the result appears here.
What it checks
What the Image Alt Text Test looks at
Alt text and its length
The text screen readers announce and Google indexes, with a character count. Empty alts are shown as empty.
Accessibility
Images without alt text fail WCAG and the ADA checklist. The list is your fix list.
Image search
Descriptive alt text is how product and project photos rank in Google Images.
How to read it
How to write alt text that works
How to write alt text that works
Describe what is in the picture the way you would to someone on the phone: “Walnut dining table with six chairs in a Fort Collins showroom”, not “table” and not “dining table furniture store Fort Collins best”. Decorative images, such as background flourishes, should have an empty alt so screen readers skip them.
Why it matters for AI search
AI assistants and Google’s image understanding both read alt text when they decide what a page shows. Product photos, before-and-after shots and team photos with real descriptions give them more to cite.
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Written and reviewed by
Kateryna QuinnFounder and CEO, aStash. Forbes Next 1000, NOCO Style 30 Under 30Kateryna founded aStash in Fort Collins in 2017. The free tools on this site are the checks her team runs on every client page; the image alt text test is the same check, opened up so you can run it yourself.
FAQ
Questions about this tool
Anything else? (970) 399-9004 reaches a person in Fort Collins, not a call center.
What is the difference between a missing alt and an empty alt?
An empty alt (alt=””) tells screen readers the image is decorative and to skip it. A missing alt attribute leaves them to read the file name aloud. Content images need real text; decorative ones need an empty alt.
Does alt text help rankings?
It helps the image rank in image search and it tells Google what the page is about. It is a small factor for the page and a large one for the image.
Why are background images not listed?
CSS background images have no alt attribute and are invisible to the test, and to screen readers. Content images should be real img tags.
Can you fix the alt text for me?
Yes. Rewriting alt text across a site is part of our ADA compliance service and of every technical SEO audit.