Rocket Viewport

Production-grade responsive viewport testing for developers

Rocket Viewport helps you test responsive websites using a curated collection of real-world screen sizes and viewport dimensions directly within Chrome. Quickly preview how your website or web application appears across a wide range of mobile, tablet, laptop, and desktop viewports without manually resizing browser windows. The extension includes hundreds of carefully organized viewport profiles based on modern devices and common screen resolutions. Profiles are grouped into categories to make responsive testing faster and more efficient during development and quality assurance. Key features: • Extensive collection of viewport profiles • Mobile, tablet, laptop, and desktop coverage • Portrait and landscape orientation support • Favorite devices for quick access • Custom themes and appearance settings • Workspace personalization options • Fast and lightweight interface • Direct integration with Chrome Rocket Viewport is designed to simplify responsive testing by providing quick access to commonly used viewport sizes in a clean and easy-to-use interface. Whether you are reviewing a new design, validating a layout update, or checking responsiveness before deployment, Rocket Viewport helps streamline the testing process and improve consistency across different screen sizes. Built for modern web workflows with a focus on speed, simplicity, and practical responsive testing.