Accessibility Testing Tools

Here are some tools you can use to evaluate web site accessibility.

Online Web Accessibility Evaluators

These tools allow you to enter a web address (URL) for single-page checking.

• WAVE
• Functional Accessibility Evaluator
• ATRC Web Accessibility Checker (AChecker)
• W3C Validator

Browser Plugins and Extensions

Chrome and Firefox

• • WAVE - Web Accessibility Evaluation Toolbar Extension
  • Deque's aXe

Google Chrome

• • Google Chrome's Chromevox Extension - Screen reader for Chrome.
  • SiteImprove Free Chrome Plugin
  • NC State University's Color Contrast Analyzer for Chrome - Can be used to evaluate color contrast on an entire web page or a region of a page.  Includes images of text in its analysis.
  • Chrome Accessibility Audit - View > Developer > Developer Tools > Audits

Mozilla Firefox

• • WAVE - Web Accessibility Evaluation Tool 
  • Accessibility Evaluation Toolbar
  • FAE - Firefox Accessibility Extension
  • Juicy Studio Accessibility Toolbar
  • Fangs Screen Reader Emulator
  • Headings Map

Color Contrast Checkers

• WebAIM Color Contrast Checker
• Accessibility Color Wheel 2.0 - Simulates how text/background colors would appear to colorblind viewers.
• Luminosity Colour Contrast Ratio Analyser
• MSF&W Contrast Ratio Calculator

Screen Readers

• Freedom Scientific JAWS - Expensive, but robust, fully-featured, and often used by those with low vision.
• NVDA (NonVisual Desktop Access) Open Source Screen Reader for Windows
• VoiceOver for iOS devices - In iOS, go to the Settings page, select General > Accessibility > Speech

Accessibility Testing Protocols

• Fluid's Accessibility Protocols and Checklists
• IBM's Web Accessibility Checklist
• The California State University Section 508 Manual Website Evaluation

Paid Tools for Scanning and Assisting with Remediation

• AccessibilityOz

• Deque Tools

• SiteImprove