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To capture a webpage—not just the browser interface—in dark mode, emulate the dark color scheme in DevTools, reload the page, then use the browser’s full-page screenshot command. In Chrome, choose Capture a full size screenshot in Device Mode. In Firefox, use its full-page screenshot tool or run :screenshot filename.png --fullpage in the DevTools console.
Before you start: dark browser theme is not dark webpage rendering
A browser’s dark interface changes the appearance of its menus and toolbars; it does not necessarily change the webpage. To darken the page, ask the site to render its dark styles using the prefers-color-scheme: dark preference. This only produces the site’s authored dark appearance if the page supports it.
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If a site has no dark theme, Chrome’s Automatic dark mode can generate a dark treatment. It is separate from preference emulation and may alter colors or images in ways the site’s designers did not intend. Inspect the page before saving the screenshot.
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Chrome: emulate dark mode and capture the entire page
- Open the page and DevTools. In Chrome, open the target webpage, then open DevTools using the browser menu or the keyboard shortcut for your operating system.
- Set the page’s color-scheme preference. Open the DevTools Rendering tab. Under Emulate CSS media feature
prefers-color-scheme, select prefers-color-scheme: dark. Chrome also exposes color-scheme emulation in the Elements panel’s Styles pane. See Chrome’s CSS media feature emulation documentation. - Reload the page. Reload after setting the emulation so the page can respond to the dark preference.
- Check the result. Scroll through the page and look for light sections, unreadable text, or dynamic content that has not updated. If the page remains light because it has no authored dark theme, use the separate Automatic dark mode option if available. Chrome describes this as an automatically generated dark theme for light-themed sites; it also sets
prefers-color-schemeto dark. Review Chrome’s documentation on automatic dark theme and other rendering effects. - Capture beyond the viewport. Open Device Mode, then use Capture a full size screenshot. This captures page content outside the currently visible browser area. Chrome documents the Device Mode controls in its Device Mode documentation.
Preference emulation or Automatic dark mode?
- Use preference emulation when the site has a dark theme and you want its own styles to appear.
- Use Automatic dark mode when the site is light-only and you want Chrome to generate a dark appearance. The generated treatment can differ from a carefully designed dark theme.
Firefox: emulate dark mode and take a full-page screenshot
- Open the page inspector. In Firefox DevTools, use the page inspector’s color-scheme controls to emulate light mode, dark mode, or no emulation. Mozilla notes that no emulation follows the operating system preference; matching that preference may mean an emulation does not visibly change the page. Details are in Mozilla’s page inspector documentation.
- Inspect the page’s appearance. Confirm that the webpage itself has changed to dark mode. A change to Firefox’s own interface is not enough.
- Capture the full page. Use Firefox’s screenshot tool and choose the full-page option, or open the DevTools console and run
:screenshot filename.png --fullpage. Mozilla documents the full-page screenshot tool and command in its screenshot guide.
Or skip the browser setup
ScreenshotNeo can return a webpage screenshot through one GET request, including WebP output:
Quick Recap
Bestseller No. 3
SaleBestseller No. 4
Best Value
Sale
Sceptre New 22-Inch Gaming Monitor, FHD 1080p, Up to 144Hz, HDMI, DisplayPort, Built-in Speakers, Machine Black (E225W-FW144 Series, 2026)
- 【INTEGRATED SPEAKERS】Whether you're at work or in the midst of an intense gaming session, our built-in speakers provide rich and seamless audio, all while keeping your desk clutter-free.
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Rank #4
Sale
Samsung 27" Essential S3 (S36GD) Series FHD 1800R Curved Computer Monitor | 100Hz, Game Mode, Advanced Eye Comfort, HDMI and D-sub Ports (LS27D366GANXZA)
- CURVED FOR ENHANCED ENGAGEMENT: An immersive viewing experience with a curved monitor that wraps more closely around your field of vision; It creates a wider view, enhancing depth perception and minimizing peripheral distraction
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Dell 24 Monitor - SE2426H - 23.8-inch FHD (1920x1080) 144Hz 1ms Display, in-Plane Switching (IPS) Technology, AMD FreeSync™, TÜV 3-Star 2X HDMI, Tilt
- Clear visuals. Fluid motion: A 144Hz refresh rate and 1ms MPRT deliver smooth, tear‑free motion across work, gaming, and streaming for clearer, more fluid viewing.
- Eye comfort: TÜV Rheinland 3‑star* certification reduces harmful blue light while preserving stunning color quality without compromise. *TÜV Rheinland 3-star eye comfort certification.
- Wide viewing angle: Get consistent views across a wide 178° /178° viewing angle.
- In-Plane Switching (IPS): See excellent color accuracy and consistency across wide viewing angles with In-plane Switching (IPS) technology.
- Ultra-thin bezels: Maximize your viewing experience with thin bezels.
Rank #2
Philips 22 Inch Computer Monitor FHD 100Hz VA VESA Flicker-Free, 221V8LB | 1920×1080 LED Monitor, 4ms GtG, Adaptive Sync, HDMI 1.4, Tilt Adjust, Low Blue Light, 4yr Advance Replacement Warranty
- CRISP CLARITY: This 22 inch class (21.5″ viewable) Philips V line monitor delivers crisp Full HD 1920x1080 visuals. Enjoy movies, shows and videos with remarkable detail
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- THE PERFECT VIEW: The 178/178 degree extra wide viewing angle prevents the shifting of colors when viewed from an offset angle, so you always get consistent colors
#1 Best Overall
Philips 24 Inch Computer Monitor FHD 100Hz VA VESA Flicker-Free, 241V8LB | 1920×1080 LED Monitor, 4ms GtG, Adaptive Sync, HDMI 1.4, Tilt Adjust, Low Blue Light, 4yr Advance Replacement Warranty
- CRISP CLARITY: This 23.8″ Philips V line monitor delivers crisp Full HD 1920x1080 visuals. Enjoy movies, shows and videos with remarkable detail
- INCREDIBLE CONTRAST: The VA panel produces brighter whites and deeper blacks. You get true-to-life images and more gradients with 16.7 million colors
- THE PERFECT VIEW: The 178/178 degree extra wide viewing angle prevents the shifting of colors when viewed from an offset angle, so you always get consistent colors
- WORK SEAMLESSLY: This sleek monitor is virtually bezel-free on three sides, so the screen looks even bigger for the viewer. This minimalistic design also allows for seamless multi-monitor setups that enhance your workflow and boost productivity
- A BETTER READING EXPERIENCE: For busy office workers, EasyRead mode provides a more paper-like experience for when viewing lengthy documents
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo API documentation for the request options. ScreenshotNeo removes cookie banners, newsletter popups and chat widgets before capture; bot checks, blank pages and failed loads are never billed. Its MCP server lets AI agents take screenshots, and the free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000. ScreenshotNeo is a website screenshot API and MCP server for developers, not a substitute for checking whether a particular site supports dark mode. Learn more at ScreenshotNeo. Sign up for 1,000 free screenshots a month, with no card required.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshooting
- The page is still light: Verify that
prefers-color-scheme: darkis selected and reload. The site may not provide dark styles; try Chrome’s Automatic dark mode if you want a generated treatment. - Only browser menus look dark: That is the browser interface theme. Change the page’s color-scheme emulation in DevTools instead.
- The screenshot only shows the visible area: Use Chrome’s Device Mode command Capture a full size screenshot, or Firefox’s full-page option or
--fullpagecommand. - The page looks different after capture: Dynamic content may load or change after the initial render. Inspect the page before saving, and allow it to finish loading before taking the screenshot.
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