Image Alt Text Checker

About Image Alt Text Checker

Alt text describes an image to screen reader users and to search engines, image search included. Run the image alt text checker on product pages, galleries and blog posts, especially after a bulk upload, when alt text is easy to skip. Enter the URL and click Check.

Every <img> on the page is listed, including lazy-loaded images that keep their address in data-src, with a thumbnail, the alt text and a state: missing, empty (fine for decorative images), looks like a file name such as IMG_1234.jpg, too long (over 150 characters) or OK. The table also shows the width and height attributes and the loading attribute, handy when you're checking layout shift and lazy loading. Filter the table and save it as CSV for whoever writes the descriptions. The check runs on our server, and nothing is stored. For a wider audit, run the SEO Checker.

How to use Image Alt Text Checker

1. 1
   Enter the page URL

   Paste the address of the page with the images.

2. 2
   Click Check

   Every image, lazy-loaded ones included, is collected with its alt text.

3. 3
   Work through the states

   Start with missing and file-name alt text, then shorten overlong ones.

4. 4
   Export the list

   Save the table as CSV and write the missing descriptions.

Why use Cubfile for this

• Thumbnails

  See each image right next to its alt text.

• Five states

  Missing, empty, file name, too long or OK.

• Lazy images included

  Images that load from data-src are found too.

• Size and loading

  Width, height and loading attributes in the same table.