Accessibility: Generating Alt Text with AI

Use AI image captioning to generate descriptive alt text for web accessibility compliance (WCAG).

AI-Powered Alt Text Generation

Alt text is essential for web accessibility. WCAG requires meaningful text alternatives for all non-decorative images.

Why Alt Text Matters

Screen readers use alt text to describe images to visually impaired users

Search engines use alt text for image indexing

Alt text appears when images fail to load

Required for WCAG 2.1 AA compliance

Generating Alt Text with AI

Use the **Image Captioner** to automatically generate descriptive captions. The AI model creates natural language descriptions like "A golden retriever playing fetch in a sunny park."

Enhancing Descriptions

Combine tools for richer descriptions:

1. **Image Captioner** for overall scene description

2. **Object Detection** for specific elements present

3. **Image Classifier** for category context

Best Practices

Review and edit AI-generated captions for accuracy

Be specific and descriptive

Avoid starting with "image of" or "picture of"

Include relevant context for the page content

Keep descriptions under 125 characters when possible