Responsive device capture

Capture the mobile experience, not just a smaller page.

Set the viewport and mobile emulation together to verify responsive navigation, content density, media queries, and touch-first layouts.

Compare captures View Screenshot API
  • Viewport control
  • Mobile emulation
  • Regional rendering
Responsive capture375 x 667
mobile=falsemobile=true

Viewport size and mobile emulation solve different problems

The viewport controls page dimensions. The mobile=true setting enables mobile browser behavior and media-query rendering for a realistic device result.

Why Teams Capture Mobile & Tablet Screenshots

Responsive QA

Validate layout, typography, navigation, and calls to action across device classes.

Localized experiences

Combine device profiles with regional rendering for market-specific review.

Change detection

Pair mobile captures with visual diffs to catch regressions.

Default Mobile Setting

By default, the mobile setting is false, which is ideal for viewing websites designed for desktop or tablet screens. This setting helps you verify how your site appears on larger screens or sites not specifically optimized for mobile devices.

YouTube: same viewport, different browser behavior

Both captures use a 375 x 667 viewport. Compare the desktop layout constrained to that width with the mobile-emulated result.

Mobile disabled

mobile=false keeps desktop browser behavior.

// Desktop behavior at 375 x 667https://api.addscreenshots.com/screenshots
?apikey=YOUR_API_KEY
&viewport=375x667
&mobile=false
&url=youtube.com

YouTube desktop rendering in a 375 by 667 viewport

Mobile enabled

mobile=true enables mobile browser behavior.

// Mobile behavior at 375 x 667https://api.addscreenshots.com/screenshots
?apikey=YOUR_API_KEY
&viewport=375x667
&mobile=true
&url=youtube.com

YouTube mobile rendering in a 375 by 667 viewport

Your API key can be found on the API Keys page. Need an API Key? Sign up to get started.
For internal applications, replace YOUR_API_KEY with your own unique API Key.
For public facing websites or hotlinks, generate a signed URL.

Google: verify responsive search layouts

Mobile disabled

Desktop behavior constrained to the smaller viewport.

https://api.addscreenshots.com/screenshots
?apikey=YOUR_API_KEY
&viewport=375x667
&mobile=false
&url=google.com

Google desktop rendering in a 375 by 667 viewport

Mobile enabled

Mobile browser behavior and responsive layout enabled.

https://api.addscreenshots.com/screenshots
?apikey=YOUR_API_KEY
&viewport=375x667
&mobile=true
&url=google.com

Google mobile rendering in a 375 by 667 viewport

Add responsive coverage to every release.

Reuse the same API workflow across viewports, mobile modes, and capture regions.

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