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Tools for simultaneous DOM and style analysis across multiple browser contexts.
Distinguishing note: Specifically targets multi-viewport debugging, not single-instance browser devtools.
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This application is a specialized web browser designed to streamline responsive design testing by rendering multiple viewport configurations simultaneously. It functions as a cross-platform testing suite that allows developers to preview and interact with web content across diverse mobile, tablet, and desktop device profiles within a single workspace. The tool distinguishes itself by synchronizing user interactions and application state across all active browser instances. When a user navigates, scrolls, or clicks in one view, these events are broadcast to every other open viewport to ensure
Injects debugging tools into multiple browser contexts to allow simultaneous element selection and style analysis.