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HTML Accessibility Scanner

Run a comprehensive accessibility scan on any HTML snippet or full page. The tool checks for missing alt text, improper ARIA usage, semantic HTML issues, landmark regions, skip links, and dozens of other WCAG requirements — all in your browser, no data sent to any server.

Why This Matters

Automated accessibility scanning catches a large share of WCAG violations quickly. This tool checks for missing alt text, improper ARIA usage, semantic HTML issues, landmark regions, skip links, and dozens of other requirements — all in your browser, with no data sent to any server.

How to Use This Tool

  1. 1

    Paste HTML

    Paste your HTML snippet or full page source into the textarea.

  2. 2

    Review instant results

    The tool immediately shows errors, warnings, and passes with WCAG criterion references.

  3. 3

    Run axe-core deep scan

    Click 'Deep scan with axe-core' for a comprehensive 50+ rule WCAG 2.2 A/AA analysis.

  4. 4

    Export results

    Download results as JSON, Markdown, or HTML for documentation.

Frequently Asked Questions

The instant scan uses our built-in rules for quick feedback on common issues. The axe-core deep scan runs the industry-standard axe-core engine with 50+ WCAG 2.2 A/AA rules for comprehensive coverage.

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