MobileViewer was created with one purpose: make it effortless for anyone building or testing the web to see exactly how their work looks on mobile devices — instantly, for free.
Over 60% of global web traffic comes from mobile devices. Yet for too long, checking how a website looks on a phone has meant juggling physical devices, configuring emulators, or hunting through browser DevTools.
MobileViewer exists to remove that friction. We believe every developer, designer, and marketer — regardless of what devices they own or how technical they are — deserves a fast, reliable way to see the mobile web as their users see it.
No installs. No accounts. No cost. Just a URL, a device, and an instant preview.
MobileViewer was shaped by the actual needs of front-end developers, UX designers, and QA engineers who test mobile layouts every day.
Open MobileViewer, paste your URL, pick a device. You're previewing in under 10 seconds. No setup, no configuration, no learning curve.
URLs you preview never leave your browser. The iframe loads the site directly — we don't proxy, store, or log any URLs you enter.
Device frames are styled to match real hardware proportions, giving a genuine sense of the physical context your users hold in their hands.
Preview public websites, staging URLs, local development servers, and any http/https address. No restrictions on what you can preview.
MobileViewer is free to use. No subscriptions, no "pro" tier, no usage limits. The core tool will always be free for everyone.
Unlike generic browser resizing, MobileViewer is built specifically for mobile preview — with the right devices, the right UX, and the right constraints.
MobileViewer started because previewing a website on mobile shouldn't require a physical device, a BrowserStack subscription, or three minutes of DevTools configuration.
The idea was simple: build the tool we wished existed. Something that works immediately, respects your privacy, and focuses entirely on one thing — letting you see your website the way your mobile users do.
We launched MobileViewer as a free, open-access tool for the web community. Since then, it has been used by thousands of developers, designers, and marketers worldwide to make better mobile web experiences.
Frustrated with slow mobile testing workflows, we designed a minimal spec for a browser-based device previewer that needed zero setup.
Built the first version with iPhone and Android profiles, portrait/landscape toggle, and instant URL loading. Deployed on Vercel.
Early users asked for iPad support, more device profiles, and a cleaner UI. We rebuilt the interface around real workflow needs.
MobileViewer supports 6+ device profiles, portrait and landscape modes, and serves developers and designers across the globe — still free.