Responsive Test Tool
Multi-device preview tool supporting common device presets and custom viewports, one-click responsive layout testing
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iPhone 15 — 393 × 852Portrait
Responsive Test Tool Usage Guide
Key Features
- Multi-device Presets - 12 mainstream device resolutions built-in
- Custom Size - Enter any width/height for testing
- Portrait/Landscape - One-click orientation toggle
- Auto Scale - Automatically scale to fit visible area
- Screenshot Export - Capture preview using html2canvas
Use Cases
- Responsive layout debugging during frontend development
- Mobile page adaptation checks
- Design mockup verification across devices
- Client demos of multi-device compatibility
- Media query breakpoint testing