Responsive design tester

Test how any website looks across desktop, tablet and mobile in a single view. Paste a URL and see every breakpoint instantly — real Chromium renders, not CSS tricks.

Desktop · tablet · mobile Custom widths Full-page each

Example · stripe.com

3 viewports
Desktop · 1440
Tablet · 768
Mobile · 375
full-page eachreal Chromium Test your URL →

See every breakpoint at once

Paste a URL and ScreenshotInk renders it across the device sizes that matter — desktop, tablet, and phone — in a single view. Instead of resizing your browser window or juggling device emulators, you get a true full-page capture at each width, so you can see exactly where a layout breaks, where text overflows, and where an image refuses to scale.

Built for real responsive QA

Every capture is a real Chromium render at the target viewport, not a CSS trick — so media queries, responsive images and breakpoint-specific layouts behave the way they will for an actual visitor. Compare the desktop and mobile renders together to catch the classic problems: a hero that crops on phones, a nav that collapses wrong, a table that blows past the screen edge.

Use it across your workflow

Designers check that a comp survives the jump to mobile. Developers verify breakpoints before shipping. Agencies prove to clients that a build looks right on every device. And when you want to automate it, the same engine is available through the ScreenshotInk API and tools — capture any set of widths programmatically.

Responsive design tester FAQ

Standard desktop, tablet and mobile viewports, plus any custom width you enter.

Yes — captures run on hosted Chromium at the actual viewport size, so responsive CSS and images behave correctly.

Yes, each device view is a full scrollable capture, not just the fold.