Alt Text Inspector
Scan your HTML snippets for <img> tags and instantly detect accessibility and SEO issues with missing alt attributes.
Alt Text Inspector
Paste an HTML snippet below to instantly audit img tags for missing, empty, or valid alternative text attributes to ensure accessibility compliance.
HTML Input
Why is Alt Text Important?
The alt attribute (alternative text) provides a textual alternative to non-text content in web pages. It serves several critical functions:
- Accessibility: Screen readers use alt text to describe images to visually impaired users. Without it, the screen reader may read the filename, or skip the image entirely.
- SEO: Search engines like Google use alt text to understand the subject matter of an image, which helps your page rank in image search and web search.
- Fallback: If an image fails to load (due to a broken link or slow connection), the browser displays the alt text instead.
Missing vs. Empty Alt Text
Not every image needs a descriptive alt text.
- Missing Alt (
<img src="...">): This is an accessibility violation. Screen readers might announce the image file name, which is disruptive and confusing. - Empty Alt (
<img src="..." alt="">): This tells screen readers to safely ignore the image. It is perfectly valid and recommended for purely decorative images (like dividers or abstract shapes) that don't convey meaning.
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