axe DevToolsFree
Browser Extension
Industry-leading automated accessibility testing. Integrates with Chrome and Firefox DevTools.
Testing Tools
WAVEFree
Browser Extension / Web Service
Visual accessibility evaluation tool. Shows errors and alerts directly on the page.
Accessibility InsightsFree
Browser Extension / Desktop App
Microsoft's accessibility testing tools for web, Windows, and Android.
Colour Contrast AnalyserFree
Desktop Application
Desktop app with eyedropper to check color contrast ratios against WCAG requirements.
Pa11yFree
Command Line / CI Integration
Automated accessibility testing for developers. Great for CI/CD pipelines.
PAVE PDF CheckerFree
Web Service
Free online PDF/UA validator. Tests PDF accessibility and provides detailed reports.
Learning Resources
W3C Digital Accessibility FoundationsFree
Online Course
Comprehensive introduction to web accessibility from the standards body itself.
WebAIM ResourcesFree
Articles & Tutorials
Extensive library of accessibility articles, tutorials, and best practices.
web.dev Learn AccessibilityFree
Online Course
Google's comprehensive accessibility curriculum with hands-on exercises.
Deque UniversityPaid
Online Training Platform
Comprehensive accessibility training with certification paths for different roles.
A11y Style GuideFree
Reference Guide
Living style guide showcasing accessible web component patterns.
Inclusive ComponentsFree
Book / Website
Heydon Pickering's deep dives into building accessible web components.
Services & Consultants
Deque Systems
Consulting & Training
Enterprise accessibility consulting, testing services, and training.
Level Access
Consulting & Platform
Accessibility management platform and professional services.
TPGi
Consulting & Testing
The Paciello Group - accessibility audits, training, and consulting.
Knowbility
Training & Certification
Nonprofit providing accessibility training and the AIR certification program.
Assistive Technologies
NVDAFree
Screen Reader (Windows)
Free, open-source screen reader for Windows. Essential for testing.
JAWSPaid
Screen Reader (Windows)
Industry-standard commercial screen reader used in many enterprises.
VoiceOverBuilt-in
Screen Reader (Apple)
Apple's built-in screen reader for macOS and iOS devices.
Dragon NaturallySpeakingPaid
Voice Recognition
Voice control and dictation software for hands-free computer use.
Community & News
A11y Weekly NewsletterFree
Newsletter
Weekly roundup of accessibility news, articles, and resources.
axe-conFree
Conference
Free annual accessibility conference with talks from industry experts.
WebAIM Discussion ListFree
Mailing List
Active community discussion list for accessibility practitioners.
The A11Y ProjectFree
Community Resource
Community-driven effort to make digital accessibility easier.