13 website accessibility testing tools
Good accessibility (or a11y) in the context of a website is to ensure that websites are well designed and properly coded so that people with disabilities can use them effectively. An accessible internet benefits individuals, businesses and society at large. Ensure your website is accessible to all with our collection of hand-picked website accessibility testing tools and resources.
Who Can Use Colour Checker
A fantastic colour contrast checker tool that brings attention to how color contrast can affect different people with visual impairments using statistics and...
Axe Accessibility Testing
Robus accessibility testing browser extension.
Checka11y.css
A CSS stylesheet to quickly highlight a11y concerns.
Stark
Integrated suite of tools for accessibility compliance testing in Figma, Sketch and XD.
Color Blind Filter
View your website with simulated colour blindness to ensure your content is accessible.
Polypane
Develop, debug and test websites and apps twice as fast. Know for sure your sites and apps work everywhere and for everyone.
web.dev
Get the web's modern capabilities on your own sites and apps with useful guidance and analysis from web.dev.
tota11y
An accessibility visualization toolkit. tota11y helps visualize how your site performs with assistive technologies.
Contrast Ratio
A tool to calculate the contrast ratio between any two valid CSS colors.
Low Vision
Test your website with simulated vision impairments.
Nibbler
Nibbler is a free tool for testing websites. Enter the address of any website and Nibbler will give you a report scoring the website out of 10 for key areas,...
Alix for Chrome
Alix allows you to lint your HTML for Accessibility issues simply by applying a stylesheet that makes use of advanced CSS selectors.
A11y Command-line Tools
Web accessibility audits powered by the Chrome logo Chrome Accessibility Developer Tools.