WCAG Highlighter is a free browser extension for Chrome designed to help developers identify basic accessibility issues according to the Web Content Accessibility Guidelines (WCAG). This tool allows users to quickly scan any webpage, highlighting elements that may not meet accessibility standards. By providing clear explanations of each issue in a side panel, it streamlines the process of ensuring that web applications are accessible to all users, particularly those with disabilities.

Ideal for frontend developers, QA testers, and UX/UI designers, WCAG Highlighter facilitates a more inclusive web development process. Users can initiate a scan by simply clicking the extension icon and selecting 'Check,' after which problematic elements are visually marked for easy identification. The analysis is conducted locally, ensuring user privacy, as no data is collected or transmitted. This extension significantly improves the efficiency and effectiveness of accessibility testing.