Accessibility tools for your entire development lifecycle. Need to test an app or secure site? We have tools for that.
Our tools provide additional flexibility for testing sites requiring authentication and mobile apps.
Download our browser extension or development tools to start your accessibility journey.

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.

Accessible Color Picker

Leverage this in-browser color picker to evaluate the accessibility of your color palette. This tool allows you to select foreground and background colors and will determine the color contrast ratio between them. If your colors do not have sufficient contrast, this tool will suggest similar colors that are compliant.