Enter a URL
The Webpage Screen Resolution Simulator on pcjow.com is a free tool that lets you view how a website looks on various screen sizes and device resolutions. It’s useful for testing responsive design, ensuring your site works well on desktops, laptops, tablets, and mobile phones.
You simply enter the URL of the webpage you want to test. The tool then displays how that webpage appears in multiple predefined screen resolutions. These resolutions simulate devices such as:
Desktop monitors (1920×1080, 1366×768)
Tablets (768×1024)
Smartphones (375×667, 414×896)
Custom screen sizes
It helps developers and designers preview layout issues and ensure consistency across devices.
This tool is ideal for:
Web developers & designers testing responsive layouts
Website owners ensuring mobile compatibility
QA testers checking site appearance across breakpoints
Digital marketers previewing landing pages on all devices
Anyone working on UI/UX for websites
Enter the website URL you want to preview
Select a screen resolution from the list or enter a custom one
Click the “Simulate” button
The tool will load the website inside a frame matching the selected screen size
✔️ 100% free, fast, and easy to use
✔️ Supports multiple screen resolutions
✔️ Helps test mobile-friendliness and layout responsiveness
✔️ No login or software needed
✔️ Useful for design feedback and visual QA
❌ Some sites with iframe restrictions (like CSP headers) may not display properly
❌ Tool does not simulate touch or device behavior, only resolution
❌ Does not test browser compatibility (use browser dev tools for that)
❌ Only one resolution view at a time (no side-by-side comparison)