Web accessibility

Tools to help you design and develop web projects with accessibility in mind.

This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external st…
The A11y Machine is an automated accessibility testing tool which crawls and tests pages of any web application to produce detailed reports.
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The Accessibility Project is a community–driven effort to make web accessibility easier.

Accessibility Developer Tools is an accessibility library. Its main component is the accessibility audit: a collection of audit rules checking for common accessibility problems, and an API for running these rules in an HTML page.

Lighthouse analyzes web apps and web pages, collecting modern performance metrics and insights on developer best practices.