The What Is My Viewport tool shows the exact size of the visible area of a web page on your screen. It displays your current viewport width and height in pixels and updates instantly when you resize your browser window. This tool helps designers, developers, and marketers understand how websites appear on different screen sizes without using complex testing setups. Visit: https://www.wearetenet.com/tools/what-is-my-viewport What Is a Viewport? A viewport is the visible part of a web page on your device screen. It is the area where all website content appears before you scroll. Viewport size changes based on: -Device type like mobile, tablet, or desktop -Screen resolution -Browser window size The viewport is not the same as screen size. Screen size refers to the full display, while the viewport only includes the area available to show web content. Why Viewport Size Matters Viewport size plays a key role in responsive design and user experience. Knowing your viewport size helps teams design layouts that work well across devices. Viewport awareness helps with: -Designing responsive layouts -Testing breakpoints for mobile and desktop -Ensuring text and buttons fit correctly -Avoiding layout breaks on smaller screens Without viewport testing, websites may look fine on one screen but break on others. What the Tool Shows The tool displays two key measurements: -Viewport Size: The visible width and height of your browser window in pixels -Screen Size: The full resolution of your device screen These values update in real time as you resize your browser window. How to Use the What Is My Viewport Tool Step 1: Open the Tool You do not need to install or configure anything. The tool loads automatically. Step 2: View Your Current Viewport The tool instantly shows your viewport width and height. Step 3: Resize Your Browser Window Change the browser window size and watch the viewport values update live. This helps you test how layouts respond at different sizes. Key Benefits of Using This Tool -Instantly shows viewport dimensions -No setup or downloads required -Helps test responsive breakpoints -Useful for design, development, and QA Works on all modern browsers and devices Who Should Use This Tool The What Is My Viewport tool is useful for: -UI and UX designers testing layouts -Web developers building responsive sites -SEO teams checking mobile friendliness -QA teams validating design behaviour -Marketers reviewing landing pages Anyone working on websites can benefit from knowing their viewport size. Responsive design starts with understanding the viewport. The What Is My Viewport tool gives a fast and accurate way to see how much space your website has to work with. It removes guesswork and helps teams design better experiences across screens. If you care about responsive design and consistent user experience, this tool should be part of your regular workflow.