Alt Text Quality Checker

SC 1.1.1 Non-text Content (Level A): All non-text content must have a text alternative that serves the equivalent purpose.

Best Practices:

• Be specific and descriptive — describe what the image shows and why it matters
• Keep it concise — aim for under 125 characters (screen readers may truncate longer text)
• Do not start with "image of" or "picture of" — screen readers already announce it as an image
• Do not include file names or extensions — describe content, not technical details
• Consider the image's context — the same image may need different alt text on different pages
• Use empty alt (alt="") for purely decorative images that add no information
• For complex images (charts, infographics), provide a brief alt and a longer description nearby