Image Alt Text Checker
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Scan your page's HTML and audit every image tag for alt text presence and quality. Alt text serves two critical functions: it makes images accessible to screen reader users with visual impairments, and it helps search engines understand image content for better rankings. The tool categorizes every image - those with descriptive keyword-rich alt text, those with text that is too short or uses problematic patterns like the filename, those with empty alt text (acceptable for decorative images but flagged for review), and those with no alt attribute at all. Each issue includes an explanation and improvement suggestion. All analysis runs in your browser. No account required.
How to Use
- 1Enter the URL of the page you want to audit in the input field
- 2Click Check to fetch the page and find all images
- 3Review the results table listing every image, its source URL, and its alt text status
- 4Images are flagged as: Missing alt text (critical), Empty alt text (decorative), Too long alt text, or Passes
- 5Click any image row to see a preview of that image alongside the current alt text
- 6Update the flagged images in your CMS and re-run the check to confirm
Features
- Fetches all <img> tags from any public URL
- Flags images with missing alt attribute
- Flags images with empty alt text (marks as decorative)
- Flags alt text that exceeds 125 characters
- Image preview alongside alt text for visual verification
- Summary statistics: total images, passing, warnings, failing
Frequently Asked Questions
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