ARC Toolkit 5.7.0

Learn about the new features and improvements in the latest version of the ARC Toolkit, a powerful browser extension for web accessibility testing.

What is the ARC Toolkit?

ARC Toolkit is a browser extension that helps web developers and testers find and fix accessibility issues on their websites. It is based on the ARC Rules engine, which allows you to inspect the accessibility of any web page, generate a simple report, and get guidance on how to fix the problems.

What’s new in ARC Toolkit 5.7.0?

The latest version of the ARC Toolkit introduces several new features and improvements that make web accessibility testing easier and more efficient. Here are some of the highlights:

  • A major update of the ARC Rules engine, which brings more accuracy, performance, and coverage for web accessibility standards. This includes,
    • Support for ARIA 1.2, including Digital Publishing (DPUB), and Graphics roles, which are new specifications that enhance the accessibility of web content.
    • 12 new automated rules and updates to 7 existing automated rules, covering various aspects of web accessibility such as keyboard navigation, color contrast, headings, labels, and more.
  • Experimental support for testing the ShadowDOM, a web technology that allows developers to create encapsulated components that are not affected by the global styles and scripts of the web page. ARC Toolkit can now detect and report accessibility issues within the ShadowDOM elements. Note: This is an experimental feature and must be enabled via ARC Toolkit’s Settings.
  • Improved support for displaying best practices, which are recommendations that go beyond the minimum requirements of the accessibility standards and help enhance the user experience for people with disabilities.
  • ARC Toolkit will also now correctly highlight elements that appear within an iframe.

How to get ARC Toolkit 5.7.0?

The ARC Toolkit is available as a free browser extension for Chrome and can be downloaded from the Chrome Web Store. To learn more about the ARC Toolkit, visit

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