Test how any website appears on different screen sizes and resolutions for perfect responsive design.

Website & Resolution Settings

Device Simulator

1200 × 800
Custom Device
https://example.com

Loading website...

Responsive Testing

Test any website across multiple device sizes to ensure perfect responsiveness.

Real-time Preview

See changes instantly as you adjust resolution settings.

UI/UX Optimization

Identify and fix design issues across different screen sizes.

Export Results

Save screenshots and resolution profiles for your projects.

Frequently Asked Questions

What does the Resolution Simulator do?

It previews any website across popular device resolutions so you can validate responsive design and layout behavior before deployment.

Can I test mobile, tablet, desktop, and TV sizes?

Yes. Choose from dozens of presets for phones, tablets, notebooks, desktops, and common television resolutions including 720p, FHD, and 4K.

Why does some content fail to load in the iframe?

Many sites block embedding for security. Use the built-in backend fetch fallback or test a publicly accessible page that allows embedding.

Can I rotate orientation and capture screenshots?

Yes. Rotate devices, refresh content, and capture screenshots for documentation or design reviews directly from the simulator.

Is this tool free to use?

Absolutely. The simulator is free and optimized for quick, reliable testing on both desktop and mobile.