Image Alt Text Generator

Create SEO-friendly and accessible alt text for your images

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Analyzing image and generating alt text...

About Image Alt Text

Alt text (alternative text) is a written description of an image that helps search engines understand your content and makes your website accessible to visually impaired users.

Why Alt Text Matters

SEO Benefits
  • Helps search engines understand image content
  • Provides context for image search rankings
  • Can improve overall page relevance
  • Provides anchor text for image links
Accessibility
  • Read by screen readers for visually impaired users
  • Displays when images fail to load
  • Required for WCAG compliance
  • Improves overall user experience

Alt Text Best Practices

Do Don't
✔ Be accurate and descriptive ✘ Don't start with "Image of..." or "Picture of..."
✔ Keep it concise (under 125 chars) ✘ Don't use keyword stuffing
✔ Include important details ✘ Don't be too vague ("chart", "diagram")
✔ Consider context and purpose ✘ Don't repeat caption or surrounding text

Examples of Good Alt Text

Decorative Image
Empty alt text alt=""

For purely decorative images that don't add meaning

Simple Image
Descriptive alt="Golden retriever playing fetch in park"

Concise description of main subject and action

Complex Image
Long description alt="Bar chart showing Q3 sales growth: Product A increased 15%, Product B decreased 5%, Product C remained steady"

Detailed description of key data points

Frequently Asked Questions

Most alt text should be concise (under 125 characters). For simple images, aim for a short descriptive phrase. Complex images (like charts) may need longer descriptions, but consider using a longdesc attribute or providing the information in surrounding text.

All meaningful images need alt text. Purely decorative images should have empty alt text (alt=""). Functional images (like buttons or icons) need descriptive alt text that explains their function.

Alt text helps search engines:
  • Understand image content for image search rankings
  • Index images properly
  • Provide context for the surrounding content
  • Improve overall page relevance for target keywords
Well-written alt text can significantly improve your image SEO.
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