Free Accessibility Checker

Check website accessibility compliance with WCAG standards and get actionable fix suggestions. Free, fast, and works entirely in your browser with no sign-up required.

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Accessibility Checker

Paste HTML code to analyze accessibility compliance with WCAG guidelines. Client-side analysis - no data sent to any server.

HTML Accessibility Analyzer

Paste your HTML code above. The analysis runs entirely in your browser.

About This Tool

This accessibility checker analyzes HTML code client-side for common WCAG violations. Paste your HTML and get instant feedback on issues across seven categories.

Checks Performed:

Missing alt text on images
Missing form labels
Empty or vague links
Heading hierarchy issues
Missing ARIA roles
Color contrast hints
Missing lang, title, main
Empty buttons, viewport
  • WCAG Level A: Minimum accessibility requirements
  • WCAG Level AA: Recommended standard (most legal requirements)
  • WCAG Level AAA: Highest level of accessibility

This tool performs static analysis via regex and heuristics. For comprehensive testing, also use browser devtools, screen readers, and tools like axe-core or Lighthouse.

Frequently Asked Questions

What is the Accessibility Checker?

The Accessibility Checker is a free online tool that evaluates your website against WCAG accessibility guidelines and identifies issues for users with disabilities.

Is the Accessibility Checker free?

Yes, it is completely free with no registration required.

What standards does it check?

The Accessibility Checker tests against WCAG 2.1 guidelines covering perceivability, operability, understandability, and robustness of your web content.

Is my data safe with this tool?

Absolutely. The Accessibility Checker processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Does the Accessibility Checker work on mobile devices?

Yes, the Accessibility Checker is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

Do I need to create an account to use this tool?

No account or registration is needed. Simply open the Accessibility Checker in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

How do I use the Accessibility Checker?

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

Which browsers are supported?

The Accessibility Checker works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

About Free Accessibility Checker

Free Accessibility Checker is a free, browser-based tool in our Website Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.

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