Image Alt Text Checker
Scan a page and list every image, flagging any that are missing alt text — important for accessibility and image SEO.
Frequently Asked Questions
Is the Image Alt Text Checker really free?
Yes — unlimited use, no signup, no credit card. We built these tools to help you audit sites without paying for a data subscription.
Does this tool store or share the URLs I check?
No. Each check runs live and we don't save your input. We keep a short-lived rate-limit counter (by IP) purely to prevent abuse; it is not linked to your results.
How accurate are the results?
This tool reads live, public data directly from the page or domain you enter — it does not rely on a paid third-party database, so it reflects exactly what is publicly visible right now.
Alt text is the written description of an image, read aloud by screen readers for visually-impaired users and used by search engines to understand what an image shows. Missing alt text is both an accessibility failure and a missed SEO opportunity — especially for image search. This tool scans a page and flags every image that's missing alt text.
How to Use This Tool
Enter a page URL and click Check Image Alt Text. The tool lists every image on the page and flags those without a meaningful alt attribute.
What This Tool Checks
Every <img> element on the page, whether each has an alt attribute, and whether that attribute is empty. It reports how many images have alt text and lists those that are missing it.
Understanding Your Results
Images flagged as missing alt text need a description added. Note that purely decorative images (like spacers or background flourishes) are correctly given an empty alt="" on purpose — so a flagged image isn't always a mistake, but content images should always have descriptive alt text.
How to Fix Common Problems
Add descriptive alt text to content images in your CMS — in WordPress, every image in the media library has an "Alt Text" field. Describe what the image shows, naturally including a relevant keyword only where it genuinely fits. Leave alt empty (alt="") only for purely decorative images.
SEO Best Practices
Write alt text that would make sense to someone who can't see the image — describe its content and function, not "image of." Keep it concise. Don't keyword-stuff alt text; it should read naturally.
Example
Scanning a blog post finds 8 images, 5 with alt text and 3 without — adding descriptions to those 3 content images improves accessibility and image-search visibility.
Common Mistakes to Avoid
Don't stuff keywords into alt text — it should describe the image, not list search terms. Don't add alt text to purely decorative images; they should have empty alt so screen readers skip them.
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