Webpage Screen Resolution Simulator

Capture one URL at desktop, laptop, tablet and mobile size and compare them side by side

Target

Capturing…
Each device is captured one at a time on our server using a real headless browser, so the full comparison can take 15–40 seconds depending on the page. If one device fails, the others still complete.

About this tool

This captures the same URL four times, once at each of desktop, laptop, tablet and mobile resolution, using a real headless browser on our server, then lays the results out side by side so you can see at a glance how your layout, navigation and text sizing respond across screen sizes. Each screenshot is real, not a scaled mockup, so anything that actually breaks at a given width (overlapping text, a hidden menu, an overflowing image) will show up here.

How to use:

  1. Enter the URL you want to check.
  2. Check "Capture the full page" if you want the entire scrollable page at each size rather than just the first screen.
  3. Click Compare across devices and wait while each of the four captures runs in turn.
  4. Review each tile, device name and exact pixel dimensions are shown above each screenshot.
  5. Download any individual screenshot with its own Download button.

Tips: if one preset fails (a slow-loading page, a blocked automated visit) the other three still complete, the failed tile shows its own error and a retry option rather than blocking the whole comparison.

FAQ

Why does the comparison take longer than a single screenshot?

Each of the four device sizes is captured as its own real page load, one after another, so the total time is roughly four times a single capture rather than one shared render.

What resolutions does each preset use?

Desktop is 1366×768, laptop is 1024×768, tablet is 768×1024, and mobile is 375×667, the same fixed dimensions used by the standalone Website Screenshot Generator.

What happens if one device fails to capture?

Only that tile shows an error, the other three device captures still complete normally, and you can retry just the failed one.

Can I download just one of the four screenshots?

Yes, every tile has its own Download button once that device's capture finishes.

Does this simulate real mobile browser behavior, like touch or device pixel ratio?

It simulates the viewport size a device would use, which is what most responsive layouts key off of, but it doesn't emulate touch input or a device's specific pixel density.