Pa11y
Pa11y is an open-source command-line tool and Node.js library for automated accessibility testing of web pages. It runs accessibility audits using the WCAG (Web Content Accessibility Guidelines) standards to identify issues that affect users with disabilities. Developers can integrate it into CI/CD pipelines or use it locally to ensure websites are accessible and compliant.
Developers should learn Pa11y to automate accessibility testing, which is crucial for creating inclusive web applications that comply with legal requirements like the ADA or Section 508. It's particularly useful in development workflows to catch accessibility issues early, such as missing alt text or poor color contrast, reducing manual testing effort and improving user experience for all.