See your site on every screen at once.
A free Chrome extension that shows any page, even localhost, on real phones, foldables, tablets, laptops and watches. Side by side, in sync.
- 111real devices
- 4 at onceside by side
- In syncscroll, taps and pages
- Privateno account, no tracking
Four devices. One workspace.
Pick any four of 111 real devices and see your page on all of them at once.

Scroll once. Every screen follows.
Scrolling, clicks and navigation stay in sync across devices.

Every device. One click.
Open a whole category at once. Here, 16 of 37 iPhones, from the iPhone 5 to the iPhone 15 Pro.

Match the design.
Drop your mockup next to the live page on any device. Side by side or overlaid, every gap between design and build is easy to spot.
- Headline copy differsLive: "Make room for your best work." Design: "Room for your best work."
- Button style differsLive: dark, square corners. Design: teal pill.

Mark the bug. Copy the fix.
Draw on a screenshot, then copy a ready prompt for your AI coding tool. Nothing leaves your machine.

- Also inside
- Record and replay flows
- Focus mode
- Rotate and zoom
- Custom sizes
- Saved device sets
I am growing increasingly fond of this extension--lets me see my website in various displays. And I can easily add any that I might want to view if a user reports an issue with that particular platform. Well done, and very useful!
What a great tool to have! I use this daily and it's the first extension in the panel. It's got many uses, but if you just want to make sure your sites and apps look good on all screens, this is hands down the best!
must-have for responsive development—easy device switching, dual-view monitoring, and perfect for my workflow.
Questions.
Is it free?
Yes. Free and open source under the MIT license, with no account.
Does it work on localhost?
Yes. Open your local page in Chrome, then open Mobile View. Nothing leaves your computer.
How is it different from DevTools device mode?
DevTools shows one viewport at a time. Mobile View shows four real devices side by side, kept in sync.
Why won't some sites load?
Some sites block being shown inside another page. Mobile View tells you and offers to open them in a tab.
Does the fix prompt upload my code?
No. It is written on your machine for you to paste into your own coding tool.
Try it on your own site.
Free. No account. Works on localhost.