WCAG Accessibility Checker
Paste HTML to find accessibility issues using axe-core. Powered by the same engine as browser DevTools.
Paste HTML to audit
Full HTML documents or snippets — processed entirely in your browser
Frequently Asked Questions
- What is axe-core?
- axe-core is the world's most popular open-source accessibility testing engine, used by Google, Microsoft, and browser DevTools. It checks for WCAG 2.1 A and AA violations automatically.
- What WCAG level does this check?
- This tool checks WCAG 2.1 Level A and AA — the standard required by most accessibility laws including ADA, Section 508, and the EU Web Accessibility Directive.
- What does 'incomplete' mean?
- Incomplete items are checks that axe-core cannot determine automatically and need manual review. For example, whether image alt text is actually meaningful can only be judged by a human.
- Can this check a live website?
- Paste the page's HTML source (Ctrl+U in Chrome to view source). The tool runs axe-core on that HTML in your browser. It cannot fetch live URLs due to browser security restrictions.
- Is accessibility legally required?
- In many countries, yes. The ADA (US), Equality Act (UK), and EU Web Accessibility Directive all require websites to meet accessibility standards. WCAG 2.1 AA is the typical legal requirement.