Free tool
Image alt text checker
Scan a page for missing alt attributes, empty attributes, duplicate values, long descriptions, or generic image alt text. Use it before publishing a landing page, product page, article, or CMS template with lots of images.
Good for
- Find missing alt attributes before publishing.
- Separate empty decorative attributes from real accessibility gaps.
- Spot repeated product image alt text.
- Generate fixes for selected image URLs.
What the checker looks for
- Images with no alt attribute, which many audits report as missing alt attributes.
- Images with an empty alt attribute, including cases where alt="" may be intentional.
- Generic values like image, photo, graphic, or screenshot.
- Duplicate alt text reused across multiple images on the same page.
- Long descriptions that are hard to review in a CMS field.
How I would use the results
- Fix meaningful content images first; decorative images may intentionally use empty alt text.
- Treat scanner results as a review queue, not an instruction to fill every decorative image.
- Generate draft replacements only for images where the source URL is available.
- Review each draft against the actual page context before publishing.
Example audit
A product collection page with 42 images might show 8 missing alt attributes, 4 repeated product names, and 2 generic values. Start with the missing product photos, then clean up duplicates where variant details matter.
Fix missing alt attribute audit errorsRelated free alt text tools
Bulk image alt text generator
Generate alt text for a short list of image URLs, then move larger batches to AltCaption Pro.
Product image alt text generator
Generate product image alt text with product name, category, and visible details as publishing context.
Shopify alt text generator
Generate image alt text drafts for Shopify product photos, collection images, and storefront media.
Alt attribute generator
Generate clean image alt text and copy it as an HTML alt attribute for CMS or code updates.
Image alt text validator
Check image alt text for common issues like empty, generic, long, or keyword-stuffed descriptions.
Social image alt text generator
Generate alt text drafts for Instagram, Pinterest, Bluesky, X, and other social images.