ViewPortal - Responsive Tester

See exactly how any website looks on every device, straight from your iPhone or iPad.

ViewPortal loads any URL in a real browser engine and renders it at true device sizes, so what you see is what your visitors get. No scaled-down screenshot, no guesswork.

Type a URL. Pick a device. Done.

TRUE-TO-DEVICE VIEWPORTS

- Pages render at each device's exact width, so layouts wrap, break and reflow just like they do in real life.

- The layout viewport is forced to the real width, so media queries and breakpoints fire correctly.

- Live pixel-size readouts show the precise dimensions you are testing.

EVERY DEVICE, ONE TAP AWAY

- iPhone: SE, 17e, 17, 17 Pro, 17 Pro Max.

- iPad: mini, iPad, Pro 11", Pro 13".

- Mac: MacBook Neo, Air 13", Air 15", Pro 14", Pro 16", iMac 24".

- Faux device chrome — notch, Dynamic Island and status bar — drawn in for realistic framing.

- Flip any device between portrait and landscape.

SIDE-BY-SIDE MULTI-VIEW

- On iPad in landscape, place phone, tablet and desktop next to each other.

- Every pane loads the same URL; configure each one independently.

- Focus or go fullscreen on any pane for a closer look.

PINCH, ZOOM, EXPLORE

- Crisp pinch-to-zoom, exactly like a real browser.

- Inspect the smallest details, then step back to see the whole layout.

PREVIEW YOUR LOCAL WORK

- Point ViewPortal at localhost or a LAN dev server (such as 192.168.x.x).

- Check work in progress and catch breakpoint bugs before you ship.

- Favourites and recents keep the sites you test most a tap away.

PRIVATE BY DESIGN

- No accounts. No analytics. No tracking.

- URLs, favourites and preferences stay on your device and are never transmitted.

A clean, monochrome, ink-on-paper interface keeps the focus on your work.

Responsive design testing, wherever you are.