SEO Lens is a free Chrome extension designed for developers and SEO professionals, providing instant audits for web pages directly in the browser. This tool evaluates key SEO elements such as metadata, headings, structured data, and social tags, presenting findings in a user-friendly side panel. Users can easily copy audit results into their AI coding agents, streamlining the optimization process with actionable insights.

The extension operates in real-time, automatically re-running audits on tab switches and page loads, ensuring up-to-date evaluations. It supports a wide range of web technologies, including WordPress, Shopify, and various JavaScript frameworks. With a focus on privacy, SEO Lens does not track user activity, running entirely within the browser. The open-source nature of the tool invites collaboration and improvements from the community.