Free Image Alt Text Checker
Every image on your website is invisible to screen readers and to Google unless it has real alt text. Most small business sites fail this without knowing. Check any page in ten seconds. Completely free.
Common questions
What is alt text?
A short written description attached to an image in your website's code. Screen readers speak it aloud for visitors who cannot see the image, and Google reads it to understand what the picture shows.
Does missing alt text really cause legal trouble?
Missing alt text is one of the most commonly cited items in web accessibility demand letters against small businesses. This checker is an informational report, not a legal assessment, but it flags the exact items those letters cite.
What makes good alt text?
Describe what is actually in the picture the way you would over the phone: 'Crew installing a paver patio in Ankeny' beats 'patio' and destroys 'IMG_2041'. Purely decorative images should have empty alt text so screen readers skip them.
My page builder added alt text automatically. Is that enough?
Usually not. Builders often copy the filename into the alt text, which is exactly the junk this tool flags. If your alt text reads like 'des-moines-patio-1024x768', it is doing nothing for anyone.