Free Digital Accessibility Testing Tools & Utilities
Explore our suite of specialized testing utilities. From automated WCAG crawlers and real-time color contrast pickers to keyboard navigation simulators and PDF checkers, these free tools help you discover detectable barriers instantly.
Select a Testing Utility
Each tool targets a specific WCAG 2.1 or 2.2 success criterion. Choose a diagnostic utility to begin your evaluation.
WCAG Pro Enterprise Scanner
Crawl up to 10,000 pages at once. Combines all automated scan engines in parallel, delivers actionable code fixes, and exports white-label PDF/CSV audits.
The CDCS Program
Train your in-house engineers to fix accessibility issues directly. 7 comprehensive modules covering screen readers, keyboard navigation, ARIA 1.2, and CI/CD.
Website Accessibility Checker
Single-URL automated axe-core crawler evaluating HTML headings, contrast, form labels, and image alt text in real time.
Color Contrast Checker
Calculates foreground and background contrast ratios against WCAG AA (4.5:1 / 3:1) and AAA (7:1) benchmarks with CSS token exports.
PDF Accessibility Checker
Tests PDF document files for PDF/UA (ISO 14289) conformance, untagged content, missing alt tags, and logical reading orders.
Keyboard Navigation Tester
Interactive simulator testing tab stop order, visual focus appearance (2.4.11), skip links, and keyboard trap elimination.
Screen Reader Testing Guide
Comprehensive testing protocols for NVDA, JAWS, and Apple VoiceOver, with auditory transcript analysis and shortcut references.
ARIA Live Region Tester
Tests asynchronous DOM updates, polite vs assertive announcements, dynamic error alerts, and toast notification speech dispatch.
Why Free Tools Are Only the First Step in Compliance
Automated tools identify surface syntax issues, but cannot determine full legal accessibility on their own. Complete ADA Title III and WCAG 2.2 safe harbor requires certified human evaluation of user journeys and assistive device interactions.
Get an Executive Human ADA Audit →