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Image Alt-Text Coverage Scanner — Free Online Tool

Find images missing alt text

Audit all <img> tags. Missing alt, empty alt (decorative), suspicious filenames needing alt.

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Learn more

Image alt-text coverage

How to use this tool

  1. 1

    Paste HTML

    Full page source.

  2. 2

    See alt coverage %

    Plus flagged images.

  3. 3

    Fix missing alt

    WCAG 1.1.1.

Frequently Asked Questions

Alt="" for decorative?
Yes — empty alt tells screen readers to skip. But file names like "hero.jpg" likely content, not decorative. This flags suspicious empty alts.

Key Takeaways

  • Image Alt-Text Coverage Scanner is a free, browser-based seo & web tool — find images missing alt text.
  • No signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Image Alt-Text Coverage Scanner

  1. Open the tool: Launch Image Alt-Text Coverage Scanner on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Image Alt-Text Coverage Scanner — Quick Facts

Price
Free — no limits, no watermarks, no paywalls
Privacy
100% browser-based — no data is sent to any server
Platform
Any modern browser on desktop, tablet, or mobile
Category
SEO & Web Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FeatureDetails
ToolImage Alt-Text Coverage Scanner
CategorySEO & Web
Signup RequiredNo
File UploadNone — processed in browser
Mobile SupportFully responsive
CostFree forever

Why Use Image Alt-Text Coverage Scanner?

You should try Image Alt-Text Coverage Scanner for a quick, private way to find images missing alt text. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.