Preview any website
on every device.
Test responsive layouts across iPhone, iPad, laptop, and desktop — all simultaneously in one screen, instantly. No extensions, no downloads.
Everything you need for responsive testing
Multi-device preview
See iPhone, iPad, laptop, and desktop simultaneously. Up to 6 devices at once, with custom viewport support.
Shareable links
Every device selection and zoom level is encoded in the URL. Share with teammates in one click.
Instant — no install
Pure client-side. No backend, no extensions, no account. Just paste a URL and start testing.
Screenshot capture
Export all device previews as a single PNG collage. Perfect for presentations and bug reports.
Keyboard-first
Full keyboard shortcut support with a command palette (⌘K). Zoom, rotate, switch layouts without touching the mouse.
Orientation & dark mode
Toggle portrait/landscape and simulate prefers-color-scheme: dark across all devices at once.
See it in action
All devices update in real-time as you type a URL