Web Accessibility Resources

Overview

Introduction to Web Accessibility - an overview from WebAIM.
Web Accessibility 101 - slides from our introductory training.
Introduction to ARIA - techniques for taking accessibility to the next level.

Testing Checklists

The following checklists can help developers and testers check the accessibility of their web pages:

Keyboard Testing Quick Reference - keyboard operability is essential for accessibility, here's how to test.
Visual Testing Quick Reference - easy (and free) ways to test visual accessibility.
Screen Reader Testing Quick Reference - tips for sighted users testing with JAWS or NVDA.
IITAA Testing Checklist - functional tests that can be performed using JAWS or NVDA.

Online Testing Tools

These online testing tools can analyze public-facing web pages for common accessibility errors. But remember that no automated testing tool can identify all accessibility errors:

WAVE - an accessibility testing and visualization tool from WebAIM.
Functional Accessibility Evaluator (FAE) - an accessibility tester from the University of Illinois.

Testing Toolbars

The following browser extensions can help test any web page you can browse too. (But still can't identify all accessibility errors):

WAVE Browser Extension - works and looks just like WebAIM's web-based testing tool.
Accessibility Insights for Web - automated tests, visualization tools, and a guide to manual testing.
AInspector for Firefox - browser-based testing from the University of Illinois.
ARC Toolkit - TPGi's automated testing tool.
axe DevTools - Deque's automated testing tool.
SiteImprove Browser Extension - works and looks like SiteImprove's enterprise accessibility testing system.

Contrast Testing Tools

The following tools can be used to check whether color combinations meet minimum contrast requirements:

Test Pages & Examples

Accessibility Examples & Tests