ResponsiveView - Multi-Device Preview

About

ResponsiveView - Test Responsive Designs Instantly
Preview your website on multiple device screens side by side. No more resizing your browser window manually — see how your site looks on phones, tablets, and desktops all at once.
📱 Multi-Device Preview
Open a dedicated preview page with multiple device viewports displayed simultaneously. See your website on iPhone, iPad, Samsung, and desktop screens — all in one view.
🖥️ 19+ Device Presets
Pre-configured screen sizes for the latest devices:
• Phones: iPhone 15/16, Samsung Galaxy S24, Google Pixel 9
• Tablets: iPad Pro, iPad Air, iPad Mini, Galaxy Tab S9
• Desktop: HD (1366px), Full HD (1920px), 2K, Ultrawide
📐 Breakpoint Indicator
Instantly see which CSS breakpoint is active for each viewport:
• xs (<640px) • sm (640-767px) • md (768-1023px)
• lg (1024-1279px) • xl (1280-1535px) • 2xl (≥1536px)
Color-coded badges match Tailwind CSS breakpoints.
🔄 Rotate & Zoom
Toggle portrait/landscape mode and zoom in/out on any viewport independently.
🌐 Works with Localhost
Test your local development server (localhost:3000, localhost:8000, etc.) directly in the preview.
⚡ How to Use:
1. Click the ResponsiveView icon in your toolbar
2. Enter a URL (or use the current page)
3. Click "Open Multi-Device Preview"
4. Your website appears on 4 devices simultaneously!
5. Add more devices, rotate, zoom, and compare
🎯 Perfect For:
• Frontend developers testing responsive layouts
• Web designers reviewing breakpoints
• QA testers checking cross-device compatibility
• Freelancers presenting responsive designs to clients
🔒 Privacy:
• No data collected or transmitted
• No account required
• Everything runs locally in your browser
Lightweight, fast, and free. Built by developers, for developers.