How to Screenshot Any Website (All Devices at Once)

Taking a single screenshot of a website is easy. But capturing how a site looks across an iPhone, a tablet, a laptop, and a widescreen monitor - all at once, in a format you can actually share - is a different problem entirely.

This guide covers every method, from the most basic to the most efficient.

The Problem with Manual Screenshots

When you need to show how a website looks across different screen sizes, the usual workflow is painful:

• Screenshot on your desktop using your OS screenshot tool
• Open Chrome DevTools, switch to device emulation, manually select each device
• Screenshot each one separately
• Crop, label, and combine them in an image editor
• Repeat every time the site changes

That process works, but it takes 15–30 minutes and produces inconsistent results - different zoom levels, different OS chrome, different rendering behavior.

Method 1: OS Screenshot Tools

Every operating system has a built-in screenshot tool:

• macOS: Cmd + Shift + 4 for a selection, Cmd + Shift + 3 for the full screen
• Windows: Win + Shift + S for Snipping Tool, Print Screen for the full screen
• Linux: varies by desktop environment

These work fine for capturing your desktop view, but they only show one viewport at a time and don’t produce the professional device-framed mockups that clients and portfolios expect.

Method 2: Browser DevTools Device Emulation

Chrome, Firefox, and Safari all have responsive design modes accessible through their developer tools. In Chrome:

1. Press F12 to open DevTools
2. Click the device toolbar icon (or press Ctrl + Shift + M)
3. Select a device from the dropdown
4. Screenshot using the “Capture screenshot” option in the DevTools menu

This gets you per-device screenshots, but the output is a raw browser viewport - no device frame, no professional presentation layer.

Method 3: MockupSnap (All Devices at Once)

MockupSnap solves all of this in one step. Paste any public URL, click “Take Screenshot,” and within 60–90 seconds you’ll have professional screenshots across all four of the most important viewports:

• iPhone 15 Pro - 393×852px mobile portrait
• iPad Air - 820×1180px tablet portrait
• MacBook Pro 14” - 1512×982px laptop
• Desktop 1080p - 1920×1080px widescreen

The results are composited into a marketing-style hero image and available as individual high-resolution WebP downloads. No software to install, no account to create, and no cost.

When to Use Each Method

Tips for Better Screenshots

Regardless of which method you use, a few things will improve your results:

Wait for the page to fully load. Dynamic content like hero images and fonts can take a second to render. MockupSnap automatically waits for network idle and font loading before capturing.

Use a clean browser state. Browser extensions like ad blockers and dark mode can change how a site renders. MockupSnap uses a clean headless browser with no extensions.

Capture the URL, not a local file. Screenshot tools work on live URLs. If you’re developing locally, use a tool like ngrok to expose your local server to a public URL first.

Summary

For casual screenshots, your OS tools or browser DevTools are perfectly fine. For anything you’re going to share - with a client, on a portfolio, in a presentation - use a tool that generates consistent, professional, device-framed outputs automatically. MockupSnap does exactly that, for free, in under two minutes.