Site Accessibility Checker - OWSH A11y Check is a free Chrome extension designed to perform instant accessibility audits on any webpage. It evaluates key accessibility metrics such as color contrast, alt text, form labels, and heading structure, providing users with an overall accessibility score ranging from 0 to 100. The tool highlights critical, serious, and moderate issues, allowing users to prioritize fixes based on impact. It also offers a detailed breakdown of specific areas that may require attention, including images, links, headings, and forms, ensuring compliance with WCAG guidelines.

The extension features a user-friendly interface that allows for one-click highlighting of issues directly on the webpage. Users can visualize problems with numbered badges and access a full audit report for a more in-depth analysis. Operating on a privacy-first approach, OWSH A11y Check runs all analyses locally in the browser without tracking or data collection, making it a reliable choice for web developers aiming to enhance site accessibility.