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How to Take Responsive Website Screenshots with Cypress Viewport Presets

Set Cypress's viewport before testing a layout, then use capture: 'viewport' to save the visible responsive screen instead of a full-page image.
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Set the viewport before you visit, test, or capture the page, then call cy.screenshot() with { capture: 'viewport' }. Cypress otherwise captures the full page by default, which is different from saving the single visible responsive screen.

Capture a responsive layout at a chosen viewport

This Cypress test loops through three explicitly chosen widths and heights, waits for the navigation to appear, and saves one viewport screenshot for each size:

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describe('responsive navigation', () => {
  const sizes = [
    { name: 'phone', width: 375, height: 667 },
    { name: 'tablet', width: 768, height: 1024 },
    { name: 'desktop', width: 1280, height: 800 },
  ]

  for (const size of sizes) {
    it(`captures the ${size.name} layout`, () => {
      cy.viewport(size.width, size.height)
      cy.visit('/')
      cy.get('nav').should('be.visible')
      cy.screenshot(`responsive-${size.name}`, { capture: 'viewport' })
    })
  }
})

Replace / and the navigation assertion with the route and readiness check that match your application. The example dimensions are custom test sizes, not a claim that each represents a standard physical device. Cypress documents the viewport command and screenshot command.

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Choose dimensions that test your layout

To catch responsive behavior, match the viewport to the CSS breakpoints and widths that matter to your page. A named preset is convenient when its dimensions fit your test; explicit width and height are more precise when you need to probe a breakpoint or a particular design width.

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Use a documented preset

Cypress documents presets including iphone-5 (320 × 568), iphone-6 (375 × 667), ipad-2 and ipad-mini (768 × 1024), and macbook-13 (1280 × 800). For example:

cy.viewport('iphone-6')
cy.visit('/')
cy.get('nav').should('be.visible')
cy.screenshot('responsive-iphone-6', { capture: 'viewport' })

For landscape orientation, pass the orientation as the second argument. Cypress reverses the preset’s width and height:

cy.viewport('iphone-6', 'landscape')

A preset is a viewport-size shortcut, not complete physical-device emulation: Cypress does not simulate devicePixelRatio. See the preset and orientation details in Cypress’s API reference.

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Set project, suite, or test defaults

Cypress starts with a 1000 × 660 application viewport unless project configuration changes it. Set viewportWidth and viewportHeight in configuration for project defaults, or use test configuration for suite- or test-scoped defaults. The active test can also change size with cy.viewport(width, height) or a preset. Cypress resets the viewport to its configured default between tests.

Starting with Cypress 16.0.0, changing viewportWidth or viewportHeight through Cypress.config() during test execution throws an error. Use cy.viewport() for an in-test change, or scoped test configuration for defaults. Consult the configuration reference for configuration details.

Capture the visible screen, the full page, or an element

For a single responsive screen, specify capture: 'viewport'. Cypress’s default screenshot mode is fullPage, which captures the application from top to bottom. The other documented mode, runner, includes the browser viewport and Cypress Command Log. To capture just a selected element, call .screenshot() on that element instead.

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cy.screenshot('responsive-screen', { capture: 'viewport' })
cy.screenshot('whole-page', { capture: 'fullPage' })
cy.get('[data-testid="header"]').screenshot('header')

Images go into the configured screenshots folder, which defaults to cypress/screenshots. Cypress can also save screenshots when tests fail during cypress run. See the screenshots and videos guide for folder and failure-screenshot behavior.

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Make captures stable and useful

Wait for the content you want to inspect before taking the screenshot. A visibility assertion, as in the first example, confirms that an element has appeared; use an application-specific condition if visibility alone does not mean the page is ready.

Screenshot options include disabling JavaScript timers and CSS animations, blacking out selected elements, and synchronous callbacks to adjust the page before and after capture. These can help control moving clocks, animations, or sensitive content. Action-command animation settings alone do not ensure that a screenshot avoids unrelated page animation. Check Cypress’s screenshot API and visual-testing guide for details.

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For pixel comparisons, keep the viewport and rendering environment consistent. Operating systems, browser versions, display scaling, and installed fonts can produce small visual differences. Cypress may scale its preview to fit the runner; its viewport documentation says that preview scaling does not affect application calculations or behavior.

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Know what Cypress screenshots do—and do not do

cy.screenshot() saves an image; it does not compare that image with a baseline. If you need visual regression checks, use a comparison workflow. Cypress’s visual-testing guide names Percy by BrowserStack as a service that captures DOM snapshots during Cypress tests and renders them across browsers and responsive widths. That documentation mention does not establish current availability or terms.

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If the goal is simply to capture the page in your Cypress test, viewport sizing plus cy.screenshot() is sufficient. If you need automated change detection or cross-browser rendering comparisons, account for that as a separate capability.

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Or skip the browser setup

For a screenshot without writing a Cypress test, ScreenshotNeo takes a screenshot or PDF from one GET request. This cURL example saves a WebP screenshot of the target URL; replace the URL and insert your API key. See the ScreenshotNeo documentation for request options.

curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp

ScreenshotNeo can accept cookie or consent banners and remove more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each cleanup step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits cost nothing, and response headers identify the page verdict and billing status. Its MCP server provides take_screenshot, get_page_info, and capture_pdf tools for Claude, Cursor, and other MCP clients. The free plan includes 1,000 screenshots per month with no card required; paid plans start at $5 for 3,000 screenshots.

Sign up for ScreenshotNeo’s free plan to try 1,000 screenshots a month without a card.

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