Color Contrast & Color Perception Accessibility Checker
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Expert Tools
Free Color Contrast Checker
ColorTester - Software for test contrast ratio (WCAG 2.0 (JIS X 8341-3:2010) color contrast success criteria) between fore color and background color - アルファサード株式会社
WCAG - Contrast Checker
Color Contrast Checker
Color Contrast Analyzer - TPGi
Khroma - The AI color tool for designers
Why APCA as a New Contrast Method?
Accessibility In Chrome DevTools — Smashing Magazine
Palettte App
Setting up a screen reader testing environment on your computer
Introduction to WAVE
Tingtun Page Checker - Find Barriers in your Web Page
Asqatasun, webpage analyser for SEO and Accessibility
Website Error Checker: Accessibility & Link Checker - SortSite
Accessibility features reference - Chrome Developers
Home - accessible-email.org
Photosensitive Epilepsy Analysis Tool (PEAT) - Trace RERC
WebAIM: Testing with Screen Readers - Questions and Answers
Keyboard Testing Basics — Knowbility
How to start testing screen reader support using VoiceOver
Basic screen reader commands for accessibility testing - TPGi
Accessify.com - all the tools, links and resources you'll ever need to make your web site accessible.
Accessify.com - all the tools, links and resources you'll ever need to make your web site accessible.
Stark: The suite of integrated accessibility tools for your product design and development team
Text Resizer - Accessibility Checker
Color Contrast Checker - TPGi
Pa11y
ARC Platform - TPGi
FedRAMP Authorized Solution