Responsive Check

About Responsive Check

Responsive Check lets you preview any website at common device viewport sizes — from small phones to large desktops — so you can quickly verify that a design adapts correctly across screens. Switch between presets, rotate between portrait and landscape, and see the exact pixel dimensions being rendered.

Key Features

• Multiple Device Presets: Mobile, tablet, laptop, and desktop viewport sizes.
• Portrait & Landscape: Rotate the frame to test both orientations.
• Accurate Dimensions: Each preview renders at true device width and height, scaled to fit.
• Instant Preview: Load a URL and switch devices without reloading.

How to Use

1. Enter a website URL and click Load.
2. Pick a device preset to preview that viewport.
3. Use Rotate to toggle between portrait and landscape.

Note on Embedding

Some sites (such as Google and many banks) prevent being displayed inside a frame using X-Frame-Options or Content-Security-Policy headers, and may appear blank in the preview.