Responsive Preview
Enter any URL to preview it simultaneously on mobile, tablet, and desktop viewports.
Enter a URL above and click Preview
How it works
1
Enter URL
Paste any webpage URL
2
Choose devices
Select from phone, tablet, laptop, and desktop viewports
3
Compare
View your site across all screen sizes simultaneously
Who it's for
→
QA testers
Spot layout breaks at mobile, tablet, and desktop simultaneously
→
Frontend developers
Verify responsive CSS without resizing your browser
→
Designers
Review design fidelity at real device widths
→
Product managers
Check responsive behavior before sign-off
FAQ
What resolutions are tested?
We test at standard breakpoints: 375px (mobile), 768px (tablet), 1024px (laptop), and 1440px (desktop).
Can I test password-protected pages?
Not with the free tool, but the API supports custom headers for authenticated pages.
Related: Screenshot API docs
Automate with the SnapSharp API
Get 500 free requests per month. No credit card required.
Get free API key →