WCAG AA Validator

Validate websites against WCAG 2.1 AA accessibility standards with detailed compliance reports.

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About This Tool

This WCAG AA Validator tool comprehensively checks websites, HTML files, or code snippets against Web Content Accessibility Guidelines 2.1 Level AA standards. It analyzes content for accessibility issues including color contrast, keyboard navigation, screen reader compatibility, form labels, image alt text, and structural semantics. The tool provides detailed reports with specific violations, remediation suggestions, and compliance scores to help developers create more accessible web experiences.

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How to Use

Enter a website URL, upload an HTML file, or paste HTML code
Select which accessibility aspects to check (color contrast, keyboard navigation, etc.)
Click 'Validate Accessibility' to run the WCAG AA compliance check
Review the detailed report showing passed checks, violations, and improvement suggestions
Download the report as JSON or HTML for documentation purposes

Frequently Asked Questions

Find Quick Answers

What is WCAG AA compliance?

WCAG AA compliance refers to meeting the Web Content Accessibility Guidelines 2.1 Level AA standards, which include requirements for color contrast, keyboard navigation, form labels, error identification, and more. This is the standard required for many government and public sector websites.

What types of accessibility issues does this validator check?

The validator checks for common WCAG AA violations including insufficient color contrast ratios, missing form labels, improper heading structure, missing image alt text, keyboard navigation barriers, lack of focus indicators, and screen reader compatibility issues.

Can I validate password-protected or local websites?

The URL validator works for publicly accessible websites. For password-protected or local development sites, use the HTML file upload or code paste functionality to validate your HTML content directly.

How accurate is the validation?

The tool uses multiple validation techniques including automated testing, semantic analysis, and rule-based checking. While it catches most common WCAG AA violations, manual testing with assistive technologies is still recommended for comprehensive accessibility assessment.

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