Accessibility Scanner

Accessibility Scanner performs automated WCAG 2.2 audits using axe-core. It loads web pages in a real browser, identifies specific failures with the exact DOM element involved, and supplies remediation guidance. The service emphasizes objective reporting over compliance scores or overlays that conceal problems.

Results appear as counts by severity mapped to WCAG criteria along with a pass or fail matrix. The tool distinguishes machine-checkable issues from those requiring human review and avoids any claim of complete coverage. Its own reports pass accessibility checks for semantic markup, keyboard navigation, and high contrast.

The scanner is delivered through multiple interfaces. A web version accepts a URL for a free single-page scan that requires no signup and produces shareable results. A browser extension audits the current tab and outlines failing elements directly on the page. Command-line operation uses system Chrome to scan from the terminal. Integration options include a CI and GitHub Action that can fail builds on regressions, plus an MCP interface for AI coding agents. Paid plans extend capabilities to site-wide monitoring and multi-page audits.

The free tier supports one page per scan and limited monitoring. Accessibility Scanner addresses the need for consistent, transparent automated accessibility checks during web development and maintenance.