🔍 /

Website Screenshot Generator

Enterprise-grade website snapshot utility. Generate high-fidelity DOM captures with viewport emulation, device framing, and responsive simulation. Features strict CORS handling and automated rendering pipelines.

User Rating 0.0 ★★★★★
Total Usage 0 times
Category Dev Generators
⌖

Enter a URL to generate a diagnostic screenshot.

Recent Captures
Is this tool helpful?

Your feedback helps us improve.

★ ★ ★ ★ ★

About

The Website Screenshot Generator is a specialized diagnostic utility designed for frontend engineers, UI/UX designers, and QA professionals. It bypasses standard client-side Cross-Origin Resource Sharing (CORS) limitations by utilizing a server-side rendering engine to capture the DOM state of remote URLs.

Unlike basic capture tools, this utility creates a synthesized viewport environment. It emulates specific device constraints, pixel densities (PPI), and aspect ratios to produce accurate visual representations. The engine accounts for lazy-loaded assets and web font rendering cycles before finalizing the frame buffer.

Core capabilities include View Source integrity checks, responsive breakpoint verification (e.g., 375px vs 1920px), and automated device framing. The output includes high-resolution .png or .jpg artifacts suitable for production audits or design portfolios.

screenshot mockup web-design viewport-testing ui-ux

Formulas

The capture resolution R is calculated based on the target viewport width w, height h, and the device pixel ratio dpr.

{
Rwidth = w × dprRheight = h × dpr

When applying device frames, the canvas compositor calculates the offset vector v relative to the frame bezel thickness t:

{
ximg = xframe + thorizontalyimg = yframe + tvertical

Reference Data

Device / ViewportResolution (px)Aspect RatioPixel Density (PPI)Render Engine
Apple iPhone 14 Pro393 × 85219.5:9460WebKit (iOS)
Google Pixel 7412 × 91520:9416Blink (Android)
Samsung Galaxy S23360 × 78019.5:9425Blink (Android)
iPad Pro 12.9"1024 × 13664:3264WebKit (iPadOS)
MacBook Air (M2)2560 × 166416:10224Desktop
Standard Desktop (FHD)1920 × 108016:996Desktop
4K Ultra HD3840 × 216016:9163Desktop

Frequently Asked Questions

Browsers enforce a security policy called Cross-Origin Resource Sharing (CORS). JavaScript running on your domain cannot directly access the pixel data of a different domain (like google.com) to take a screenshot. This tool uses a server-side rendering engine to load the page in a headless browser, capture the frame buffer, and transmit the image back to you.
The tool requests the rendering engine to resize its virtual viewport to match the exact dimensions of the selected device (e.g., 393px width for iPhone 14). This triggers CSS media queries (@media) on the target site, ensuring you see the mobile layout rather than a scaled-down desktop version.
Yes. The capture engine is configured to wait for the "networkidle" event, meaning it pauses capture until network requests (AJAX/Fetch) have settled. This allows React, Vue, and Angular apps to hydrate their content before the snapshot is taken.
The engine is optimized for viewports up to 1920x1080 (Full HD). While 4K capture is theoretically possible, it often results in timeouts due to the massive payload size of the base64 image data.