Preview a live website
Enter a public URL and move it between common phone, tablet, laptop and desktop viewports.
Responsive testing, without the tab juggling
Device Frame Preview Online
See your website or screenshot where people will actually use it. Jump between phone, tablet, laptop and desktop—or line them all up at once.
4 realistic framesCustom viewport sizesPrivate screenshot preview
01Live device previewPhone · 390 × 844 px
LIVE
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THE CALMER WAY TO PLANMake space for
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A thoughtful workspace for projects, plans and the ideas worth keeping.
Opening preview…
Uploaded screenshots stay on your device. Nothing is uploaded or stored.
One page, every screen
Responsive previews that feel like the real thing
A width number alone is hard to picture. This free device frame preview online puts your design in context, so navigation, typography, tap targets and content density are easier to judge before launch.
Use any screenshot
Drop in a design capture when a site is private, unfinished or protected from iframe embedding.
Compare all at once
Turn on the multi-device view to spot breakpoint problems and visual drift without switching tabs.
Three quick steps
How to preview a website on different devices
No browser extension or account is required. Go from a URL to a useful responsive check in seconds.
- 1
Add a URL or screenshot
Load a public web page, or upload a PNG, JPG or WebP for a private visual check.
- 2
Choose a frame and orientation
Switch between realistic device types, rotate the viewport, or enter exact dimensions.
- 3
Compare the responsive layout
Use Compare all to review the same page across four popular screen classes together.
A better pre-launch habit
What should you check in a responsive device preview?
Start with the essentials: menus should remain reachable, headings should wrap cleanly, buttons should be easy to tap, and important content should not disappear below oversized artwork. Then check the in-between sizes. A layout can look perfect at a standard phone width and still break just before its tablet breakpoint.
Test the awkward middle
Use the custom width control around your CSS breakpoints—one pixel below and one pixel above—to catch sudden jumps, clipped text and unexpected wrapping.
Quick answers
Device frame preview FAQ
What is a device frame preview?
It is a visual testing tool that places a website or screenshot inside a phone, tablet, laptop or desktop frame. This makes responsive layouts easier to review in context.
Can I test a responsive website online for free?
Yes. Paste a public website URL and choose a viewport, orientation or custom size. You can also compare four common device sizes on one screen.
Why is my website blank in the frame?
Some websites prevent other pages from embedding them for security. Switch to Screenshot mode and upload a capture of the page instead; the frame and comparison controls will still work.
Are my screenshots uploaded or stored?
No. Screenshot files are read locally in your browser and never leave your device.
Which device sizes are included?
The presets include a 390 × 844 phone, 768 × 1024 tablet, 1440 × 900 laptop and 1920 × 1080 desktop. You can also enter a custom width and height.
Is the device frame preview online and free?
Yes. It is completely free to use online, needs no sign-up and adds no watermark.
Keep testing and polishing
Explore all tools →Try other free website tools
Inspect a breakpoint, frame a screenshot, or turn your final capture into a share-ready visual.