What is a screen resolution simulator?

A tool that previews a website inside a frame set to specific width and height to simulate different devices.

Why does my site not show in the preview?

Some sites block being embedded in iframes using security headers (X-Frame-Options or CSP). Use the Open in New Tab button instead.

Does this tool affect my website?

No. It only loads your URL in a preview frame. No changes are made to your site.

Screen Resolution Simulator

Preview any website at any screen size. Pick a device preset or enter a custom resolution and zoom.

Ad Slot (Below H1) — paste your AdSense code here if needed.

Website URL Device Preset (optional)

Width (px)

Height (px)

Zoom (%)

Reset Open in New Tab

⚠️ Some websites block iframe previews for security. If you see a blank frame, use Open in New Tab.

Ad Slot (Sidebar) — paste your ad code here.

390×844 • Zoom 100%

URL: https://seocraft.io/

390×844

Ad Slot (Below Tool) — paste your ad code here.

How it works

This tool loads your URL inside a preview frame with a specific width and height, simulating common devices. Use presets or enter a custom resolution for quick responsive testing.

FAQ

Why is the preview blank?
Some websites block iframe embedding using security headers. Try the Open in New Tab button.

Can I test any resolution?
Yes. Enter any custom width/height and adjust zoom as needed.

Screen Resolution Simulator

How it works

FAQ

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