FlexViewport

ONE WEBSITE. EVERY SCREEN.

Test your website on every screen

Preview your website across phones, tablets and desktops at the same time.

No sign-up. Just start with a URL.

THE BIG PICTURE. EVERY DETAIL.

One website. Three perspectives.

From the smallest screen to the widest view, see it all together.

FlexViewportLive layout demo
Mobile
forma®
WorkAbout
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INDEPENDENT DESIGN STUDIO

Less noise. More meaning.

We build thoughtful digital experiences. Every detail, right where it belongs.

Explore our work
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Selected projects01 — 03
Project 01↗
Project 02↗
Project 03↗
Tablet
forma®
WorkAbout
Let's talk ↗

INDEPENDENT DESIGN STUDIO

Less noise. More meaning.

We build thoughtful digital experiences. Every detail, right where it belongs.

Explore our work
F / 01
Selected projects01 — 03
Project 01↗
Project 02↗
Project 03↗
Desktop
forma®
WorkAbout
Let's talk ↗

INDEPENDENT DESIGN STUDIO

Less noise. More meaning.

We build thoughtful digital experiences. Every detail, right where it belongs.

Explore our work
F / 01
Selected projects01 — 03
Project 01↗
Project 02↗
Project 03↗

A sample responsive layout. No external websites are loaded.

BUILT FOR YOUR WORKFLOW

Everything for a confident launch

Multiple screens at once

Check mobile, tablet and desktop versions side by side.

Current device dimensions

Popular CSS viewport sizes for phones and tablets.

Your own viewport

Set any width and height to fit your needs.

A faster way to check

No accounts. No complicated setup.