To capture an entire page at a chosen viewport size in Chrome, open DevTools, enable the Device toolbar, set the viewport dimensions in Responsive mode, then select More options > Capture a full size screenshot. The full-size command saves content beyond the visible viewport; the regular screenshot command does not.
Capture a full page at a one-time custom size
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Open the page in Chrome and open DevTools. You can use the browser’s DevTools menu or its keyboard shortcut for your operating system.
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Turn on the Device toolbar using the Toggle device toolbar control in DevTools.
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In the Device toolbar’s Dimensions controls, select Responsive if it is not already selected.
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Enter the width and height you want in the viewport fields. These are viewport dimensions in pixels; for example, Google’s documentation illustrates entering 480 by 415 pixels. That is an example, not a recommended universal size. You can also drag the viewport edges to resize it.
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Open More options in the Device toolbar and choose Capture a full size screenshot. Chrome saves an image file of the page, including content outside the visible viewport.
Use Capture screenshot instead only when you want the currently visible viewport, rather than the full page. Chrome documents the full-page choice in its Device Mode guide.
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Save dimensions for repeated captures
If you regularly need the same viewport dimensions, create a custom device rather than re-entering them each time.
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Open the Device toolbar’s device list and choose Edit.
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In DevTools settings, open Devices and add a custom device.
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Give it a name and enter the width and height you want. Device pixel ratio, user-agent string, and device type are optional in the documented setup.
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Select the custom device from the Device toolbar’s Dimensions list, then choose More options > Capture a full size screenshot.
Use Responsive mode for a quick, one-off capture; use a custom device when you want a named configuration available again.
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Choose the right screenshot mode
| What you need | Device toolbar command | What it captures |
|---|---|---|
| Only the visible area | Capture screenshot | The current viewport |
| The whole page | Capture a full size screenshot | The page, including content outside the current viewport |
The viewport fields set the page’s emulated viewport; the full-size command determines whether Chrome captures only that viewport or extends the screenshot to include the page below it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Understand what Device Mode does—and does not—simulate
Device Mode is a desktop-based approximation of a mobile experience, not a browser running on a physical phone. Chrome notes that mobile CPU architecture differs from laptop or desktop CPU architecture, so a capture at a mobile-sized viewport does not establish exactly how the page will behave on a real device. If behavior depends on hardware or other device-specific conditions, check it on a physical mobile device.
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If you want the screenshot to include a device frame, switch to a device-specific mode and enable the frame before capturing. The frame is a separate option from the page’s full-size content.
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Common problems and fixes
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The image shows only the top of the page. You likely chose Capture screenshot. Open More options and select Capture a full size screenshot.
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The page has the wrong width or height. Confirm that Dimensions is set to Responsive or to the intended custom device, then check both numeric viewport fields before capturing.
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You cannot find the screenshot commands. Make sure the Device toolbar is enabled, then open its More options menu.
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You need to repeat the same dimensions. Add a custom device in DevTools settings under Devices, then select it from the Dimensions list.
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The capture does not match a physical phone. Device Mode is an approximation. Verify on a real mobile device when the difference matters.
Or skip the browser setup
ScreenshotNeo can return a screenshot from one GET request. The example saves a WebP capture of stripe.com; replace the URL with the page you need and supply your API key. See the ScreenshotNeo API documentation for request options.
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