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Image Alt Attribute SEO & Accessibility Checker

Content & Audit • 100% Client-Side Processing

Image SEO and accessibility auditor. Scans HTML for <img> elements, flagging missing alt attributes (WCAG violation) and empty descriptions to improve image search rankings.

Privacy First: Image Alt Attribute SEO & Accessibility Checker executes 100% locally in your web browser. No inputs or generated outputs leave your device.
Total Images
3
With Alt Text
2
Missing Alt Text
1

Tool Chaining — Continue Workflow

Take your result from Image Alt Attribute SEO & Accessibility Checker directly into companion utilities:

HTML Heading Structure & Hierarchy CheckerGoogle Search SERP Snippet Preview

How to Use

  1. Paste page HTML.
  2. Inspect list of images with alt statuses.
  3. Review flagged missing descriptions.

Key Features

  • •Detects missing alt attributes (WCAG 1.1.1 error)
  • •Differentiates empty decorative alt="" from missing alt
  • •Extracts src filenames

Technical Scope & Limitations

  • • Does not inspect CSS background images.