Web Accessibility Checker is a free online tool that evaluates websites against WCAG 2.1 and 2.2 standards. It performs automated accessibility audits, identifies violations by severity level, and generates instant downloadable PDF reports. The tool checks for color contrast issues, missing alt text, keyboard navigation problems, and ARIA attribute errors. Ideal for web developers, QA teams, agencies, and compliance officers ensuring ADA, Section 508, and European Accessibility Act (EAA) compliance. No account required — just enter a URL and get results in seconds.