On a Mac, use Safari’s Develop > Enter Responsive Design Mode (Control-Command-R) to show a mobile-sized version of a webpage, then capture the visible preview with macOS screenshot controls. Web Inspector helps you debug the page, but Apple’s documentation does not describe a screenshot-export command inside Web Inspector.
Capture a mobile-sized webpage on your Mac
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Open the target website in Safari on macOS.
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If Safari has no Develop menu, open Safari settings and enable the developer features in the Advanced section. Apple’s current documentation describes this setting; exact labels can vary between Safari releases.
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With the target page focused, choose Develop > Enter Responsive Design Mode, or press Control-Command-R.
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Choose a suggested viewport or enter custom width and height values. Responsive Design Mode lets you adjust the viewport, rotate it, and change its pixel ratio.
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To inspect layout or behavior as you work, choose Develop > Show Web Inspector. Use its tools to examine page structure, styles, scripts, and network activity.
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Arrange Safari so the preview is unobscured and at the size you want, then use macOS screenshot controls to capture the visible preview. This captures what is on screen; it is not a full-page export from Web Inspector.
Apple documents Responsive Design Mode and Web Inspector, but not a command in Web Inspector that saves a screenshot. For the screen capture, use macOS’s screenshot controls rather than looking for an export option in the inspector.
What Responsive Design Mode can—and cannot—show
Responsive Design Mode is useful for checking responsive layouts and media queries at mobile viewport dimensions. A preset is an approximation, not an exact reproduction of a physical device. Apple notes that the address bar, on-screen keyboard, and device-specific form-field behavior can affect what a page looks like or how it behaves. Apple’s Responsive Design Mode documentation recommends opening the page in Simulator when more accurate device behavior matters.
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Choose the right capture workflow
| Workflow | Device fidelity | Capture scope | What you need |
|---|---|---|---|
| Responsive Design Mode plus macOS screen capture | Approximate mobile viewport | Visible preview | Mac running Safari |
| Responsive Design Mode opened in Simulator | More accurate simulator behavior than a preset | Visible simulator view, captured with system screen capture | Mac and installed Simulator |
| Remote Web Inspector with an iPhone or iPad | Actual device and live page behavior | Device screen, captured using its screenshot workflow | Mac and iPhone or iPad; cable for initial setup, or network after setup |
| Native iPhone Full Page capture | Actual Safari page on the device | Beyond the visible screen, including an entire webpage | iPhone |
Inspect Safari on a connected iPhone or iPad
When a responsive preview is not enough, you can use the Mac’s Web Inspector with a live page on an iPhone or iPad. Enable inspection on the device, connect it to the Mac, then select the device and page from the Mac’s Develop menu.
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On the iPhone or iPad, open Settings > Apps > Safari > Advanced > Web Inspector and enable Web Inspector.
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Connect the device to the Mac and respond to a trust prompt if one appears.
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On the Mac, open Safari and choose the device and the open webpage from the Develop menu.
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Use Web Inspector to debug the page. To save a screenshot, use the device’s screenshot workflow; Web Inspector is the inspection connection, not the documented screenshot-export control.
After the initial wired setup, Apple says you can enable Connect via Network from the device submenu in the Mac’s Develop menu. See Apple’s instructions for inspecting an iOS or iPadOS device.
Capture an entire webpage on iPhone
If you need a full-page image of a Safari webpage on an iPhone, take a screenshot on the device and choose Full Page in the screenshot preview. Apple Support describes this native workflow as capturing content beyond the screen, including an entire webpage. It is separate from using Web Inspector on a Mac; see Apple’s instructions for taking a screenshot on iPhone.
Or skip the browser setup
For a screenshot returned by an API, send one GET request to ScreenshotNeo. Replace YOUR_API_KEY with your access key and change the target URL as needed; the example saves the response as a WebP file. See the ScreenshotNeo API documentation.
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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo accepts cookie or consent banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets; each step can be turned off. Bot checks and CAPTCHAs, blank pages, timeouts, failed loads, and cache hits cost nothing, and the response identifies the page verdict and billing status. Its MCP server provides screenshot tools for AI agents, including Claude, Cursor, and other MCP clients. The Free plan includes 1,000 shots per month with no card; paid plans start at $5 for 3,000 shots.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshooting Safari captures
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Develop is missing: Enable Safari’s developer features in its Advanced settings. The exact setting label can shift between releases.
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The page still looks like a desktop site: Confirm Responsive Design Mode is active and that the viewport dimensions are set to the mobile size you intend to inspect. Some sites also vary their layout based on behavior beyond viewport width.
Do these 3 things before closing this tab:
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The capture includes the inspector or other windows: Reposition or close panels and make sure the Safari preview is unobscured before using macOS screenshot controls.
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The preview differs from an iPhone: A preset approximates a device and may not match its browser interface, keyboard, or form controls. Use Simulator or a connected device if those details matter.
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The iPhone does not appear in Develop: Check that Web Inspector is enabled in the device’s Safari advanced settings, connect and trust the device, and reopen the Develop menu. For a network connection, first complete the wired setup and enable Connect via Network from the device submenu.
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You need content below the visible screen: macOS capture of the Responsive Design Mode preview captures the visible area. On iPhone, use the native screenshot preview’s Full Page option for a webpage-wide capture.
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