Image Alt Text Generator
Generate descriptive, SEO-friendly alt text suggestions for images based on filename, context and keywords. Improve accessibility and image SEO.
🔍 SEO Tools
Free
Browser-based
Why Alt Text Matters
Alt text (alternative text) serves two critical purposes: accessibility — screen readers use it to describe images to visually impaired users — and SEO — search engines use it to understand image content and index images in image search. Missing or poor alt text is a common on-page SEO issue.
Alt Text Best Practices
| Rule | Example |
|---|---|
| Be descriptive and specific | "Blue Nike running shoes on white background" |
| Include keyword naturally | "Men's lightweight running shoes for marathon" |
| Keep it concise | Under 125 characters |
| Don't start with "image of" | Screen readers already announce "image" |
| Decorative images | Use empty alt="" (not missing, but empty) |
Filename SEO
Image filenames also contribute to image SEO. Use descriptive, hyphenated names like blue-running-shoes-nike.jpg rather than IMG_0042.jpg. This tool parses filenames to generate relevant alt text suggestions.