Responsive Testing Tool

Preview any site on
any device

Instantly see how websites look across iOS, Android, tablets, laptops, and desktops — all without leaving your browser.

Try: wikipedia.org example.com shifat.dev archive.org
Device Presets
iOS
Android
Laptop & Desktop
Legacy — Still Widely Used
px
px
—
—
Zoom 55%
Enter a URL above to preview
Select a device preset, then hit Preview.
Select a device & enter a URL
Your responsive preview will appear here.

What This Tool Does

The Website Preview Tool lets you instantly see how any publicly accessible website looks across real device dimensions — from iPhone 16 Pro to a 4K desktop monitor. Just paste a URL, pick a device, and hit Preview. No downloads, no installs, no extensions required.

How to Use It

  1. Enter any URL in the search bar above (e.g. https://wikipedia.org)
  2. Select a device preset — iOS, Android, tablet, laptop, or desktop
  3. Hit Preview to load the site inside the device frame
  4. Use the zoom slider to adjust scale, or tap Open to visit the site directly

Features

  • 15+ real device presets — iPhone, Galaxy, Pixel, iPad, MacBook, 4K monitor
  • Custom resolution input for any viewport size
  • Realistic device frames with phone notch, Android nav bar, laptop lid
  • Live zoom control from 15% to 100%
  • Open in new tab or reload without leaving the tool
  • Fully free — no signup, no account needed

Why Some Sites Don't Load

Some websites like Apple, YouTube, and Google block embedding via a browser security header called X-Frame-Options or Content-Security-Policy. This is a deliberate choice by those sites — not a bug in this tool. Sites like Wikipedia, Archive.org, and shifat.dev work great. If a site you want to test is blocked, try opening it in a new tab using the Open button.

Frequently Asked Questions

Is this tool free to use?
Yes, completely free. No login, no account, no limits.
Can I test my own local development server?
Not directly via this tool since it runs in your browser context, but you can test any publicly accessible URL including staging links.
Why does the preview look different from the real device?
This tool uses CSS scaling to simulate device dimensions. It's accurate for layout testing, but for pixel-perfect rendering, use actual device testing or Chrome DevTools.
What does Custom resolution do?
You can input any width and height in pixels to test non-standard viewport sizes — useful for testing edge cases or specific breakpoints in your CSS.