What is Responsive Preview Tool?
Responsive Preview shows how your website looks across different devices and screen sizes. Test your responsive designs on phones, tablets, laptops, and desktops without needing physical devices. Ensure your site works perfectly at every breakpoint.
Common Use Cases
Responsive Testing
Verify layouts and functionality across all common device sizes.
QA Workflows
Quickly check responsive behavior during development and testing.
Client Presentations
Demonstrate how designs will appear on different devices.
Bug Reproduction
Identify and reproduce viewport-specific layout issues.
How to Use This Tool
- Enter the URL of the page you want to preview
- Select from preset device sizes or enter custom dimensions
- Toggle between portrait and landscape orientations
- Compare multiple device views side by side
- Test touch interactions and scroll behavior
Frequently Asked Questions
Can I test localhost URLs?
Yes, if your local development server is running, you can preview localhost URLs in the tool.
Are these exact device simulations?
The tool simulates viewport sizes. For exact device behavior including touch and performance, test on actual devices.
Why do some sites not load?
Sites with X-Frame-Options or CSP headers preventing iframe embedding cannot be previewed. This is a security feature.
Can I test different user agents?
This tool focuses on viewport simulation. For user agent testing, use browser developer tools.