Screen Resolution Simulator

Test your website's responsiveness across mobile phones, tablets, laptops, and desktop viewports.

Responsive Screen Simulator & Device Viewport Tester

Simulate and test how your website renders across mobile phones, tablets, laptops, and 4K desktop screens with instant orientation toggling.

How to use this tool

  1. Enter the webpage URL you wish to inspect.
  2. Select a device preset (iPhone, Galaxy, iPad, Laptop, Desktop).
  3. Toggle portrait or landscape orientation to test responsive breakpoints.

Frequently Asked Questions

Why is responsive testing crucial for SEO?

Google uses Mobile-First Indexing, ranking sites based on their mobile usability, responsive viewport design, and tap targets.

Can I test local development URLs?

Yes, localhost and internal staging servers can be simulated directly in your local browser.

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Instant analysis, generation, and inspection inside your browser with zero data sent to external servers.