Start with our free tools

Explore our free tools to test for some common accessibility issues.

Browser showing search bar and page HTML page structure

Page Tester

Want to know if your website is accessible to persons with disabilities? Use the free community editions of our best tools to start evaluating your system and get early insights.

Accessible Color Picker (New)

The color contrast checker provides a quick and easy method for testing color combinations for validity under leading accessibility standards such as the Web Content Accessibility Guidelines (WCAG) 2.0 requirements.

Desktop monitor show a pass with a smilie face and fail with a not happy face

Color Contrast Checker

The algorithm used in this tool and subsequent results are based on the luminosity algorithm recommended in the WCAG 2.0 guidelines to test for contrast.

Continuous Accessibility Testing

Embed accessibility best practices into your entire software development lifecycle and prevent the most critical violations before you release.


Continuum Explorer

Continuum Explorer is the simplest way for developers to write beautiful and accessible code. Download this browser extension to check your code for accessibility when “live reloading” modified code in the browser.

Automatic Testing,
in an Instant

Test your web pages for accessibility instantaneously, directly within the browser with the Access Assistant toolbar.


Try the new toolbar for free, and start reducing your risk now.

Access Assistant