Dark Mode Screenshot — Free Online, No Signup Required
Take dark mode screenshots of any website online for free — no signup, no login needed. Capture websites in their dark theme with automatic color scheme emulation. PNG, JPG, WebP output. No registration.
Options
How it works
Paste your URL or HTML
Enter a website URL, paste raw HTML code, or upload an HTML file.
We render it in a real browser
Your content is rendered in a headless browser for pixel-perfect accuracy.
Download your file instantly
Your screenshot or PDF is generated and ready to download in seconds.
Need this at scale? Use our API
100 free requests/month, no credit card required
curl -X POST https://api.screenshotdev.com/v1/screenshot \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"url": "https://example.com",
"dark_mode": "true",
"format": "png"
}'Features
Automatic Dark Mode
Emulates prefers-color-scheme: dark at the browser level, triggering native dark themes without manual toggling.
Custom CSS Injection
Force dark styles on any website by injecting custom CSS. Override backgrounds, text colors, and borders as needed.
Full Page Dark Capture
Combine dark mode with full-page scrolling to capture the complete dark theme experience from header to footer.
Device Simulation
Test dark mode on desktop, tablet, and mobile viewports. Use device presets for accurate representation of each form factor.
Multiple Formats
Export dark mode screenshots as PNG, JPG, or WebP depending on your quality and file size requirements.
Frequently asked questions
How do I take a dark mode screenshot for free?
Enter the website URL and click Capture. Dark mode is enabled by default. It uses the prefers-color-scheme: dark media query to trigger the site's dark theme. No signup needed — completely free.
What if the website does not support dark mode?
If a website has no dark mode implementation, the screenshot will show the default (light) appearance. The tool emulates the browser-level preference but cannot force dark styles on sites that do not have them.
Can I compare light and dark mode screenshots?
Yes. Take a screenshot with this tool (dark mode enabled), then use the regular Website Screenshot tool for the light version. Compare both captures side by side.
Does dark mode emulation work with all websites?
It works with any website that implements dark mode using the CSS prefers-color-scheme media query. Sites using JavaScript-based theme toggles may also work if they read the system preference.
Can I take full-page dark mode screenshots?
Yes. Enable the Full Page option alongside dark mode to capture the entire scrollable page in dark theme as one tall image.
How do I test dark mode for my own website?
Enter your website URL and capture a screenshot. Review the result to verify your dark mode styles render correctly. Compare different viewport sizes to test responsive dark mode behavior.
Can I inject custom CSS to force dark mode?
Yes. Use the Custom CSS option in advanced settings to inject styles like body { background: #1a1a1a; color: #fff; } to force dark styling on any page, even without native dark mode support.
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Use cases
Dark Mode QA Testing
Verify your website's dark mode implementation by capturing screenshots across different viewports. Catch contrast issues, missing styles, and inconsistencies before users do.
App Store and Marketing Assets
Generate polished dark mode screenshots for app store listings, product pages, and marketing materials. Dark screenshots look striking and modern in presentations.
Design Documentation
Document both light and dark variants of your design system by capturing component screenshots in each mode. Build a comprehensive visual reference.
Accessibility Review
Evaluate contrast ratios and readability in dark mode. Identify elements with insufficient contrast that may fail WCAG accessibility guidelines.