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Accessibility Image Describer

Generates concise, accessible descriptions of screenshots and images for visually impaired users. Used in Simon Willison's shot-scraper tool.

Updated Feb 25, 2026

95% found helpful
◇GPT-4 VisionBeginner
accessibilityvisionalt-textsimon-willisona11y
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Use Cases

✓
Generating alt text for web screenshots
✓
Automated accessibility descriptions in CI/CD pipelines
✓
Making visual content accessible to screen readers
✓
Documenting UI changes for visually impaired team members

Prompt

Describe this screenshot for someone who is visually impaired. Be concise but thorough. Focus on the key information and interactive elements visible on the page. Structure your description as:

1. What type of page/interface this is
2. The main content or information displayed
3. Key interactive elements (buttons, links, forms)
4. Any important visual cues (colors, icons, status indicators)

Powered by Hugging Face Inference API

Pro Tips

  • •Works with GPT-4V, Claude 3, Gemini Pro Vision, or any multimodal model
  • •Great for automated accessibility testing pipelines
  • •Keep descriptions under 200 words for best screen reader experience

References

shot-scraper by Simon Willison

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