Viewport Preview Simulator
Preview a website across multiple screen sizes to test your responsive design.
iPhone 14 Pro
393px x 852px
iPad Air
820px x 1180px
Laptop
1366px x 768px
Desktop
1920px x 1080px
Large Desktop
2560px x 1440px
About the Viewport Simulator
This tool helps web developers and designers quickly check the responsiveness of a website across a range of common device screen sizes. By loading your URL into multiple iframes simultaneously, it provides an at-a-glance overview of how your layout adapts, helping you spot issues without constantly resizing your browser window.
Frequently Asked Questions
Related Web Tools
Gradient Palette Generator
Create CSS gradients with Tailwind code export.
Color Converter
Convert HEX, RGB, HSL, CMYK, and HSV colors instantly.
QR Code Generator
Generate QR codes entirely in the browser.
Scroll-to-Top Button Generator
Generates a customizable scroll-to-top button.
Modal & Dialog Snippet Generator
Creates responsive modals or popups with code snippets.
Tooltip & Popover Generator
Generates lightweight JS/CSS for tooltips.
More Web Tools
Chronological Age Calculator
Calculate precise age (Years, Months, Days) for standardized testing and assessment reports.
Whack-A-Mole
Play a classic game of Whack-A-Mole.
Flip a Coin
A simple, interactive tool to flip a virtual coin.
Decision Roulette
A fun, interactive wheel spinner to help you make random choices.
Viewport Scroll Spy Generator
Track scroll positions and highlight active sections on your web pages easily.
Emoji Picker Widget Generator
Add a customizable emoji picker to your web forms or chat applications instantly.
Form Field Auto-Filler Generator
Automatically prefill your web forms using URL params or localStorage for testing and marketing.
CSS Shape & Clip-Path Generator
Create custom CSS shapes and clip-paths visually for modern web designs.
Dynamic Theme Generator
Create and preview dynamic CSS themes with variables for light, dark, or custom color schemes.