Viewport Resizer: Ultimate Device Emulator & Website Testing Tool
by Malte Wassermann
Viewport Resizer: Ultimate Device Emulator & Website Testing Tool
by Malte Wassermann
Quick Look
Viewport Resizer is a powerful Chrome extension for web developers to emulate devices, test responsive designs, and present websites in various resolutions and mockups.
AI Overview
Who is this for?
Web developers and designers needing to test and showcase their websites across multiple devices.
Key Features
- → Device emulation and screen resizing
- → Customizable device mockups
- → Advanced emulation features (user-agent, touch simulation)
- → Ruler, grid, and zoomable workspace
- → Presentation mode ('Coffee Mode')
Reviews Analysis
Overall Sentiment
Mostly PositiveUsers find the Viewport Resizer extension incredibly useful for testing and developing responsive websites, appreciating its extensive features and ease of use, though some minor issues or suggestions for improvement are occasionally mentioned.
Note: AI analysis focuses on the substance and recency of reviews, which may differ from the overall store rating.
What Users Love
- ✓ Excellent for testing responsive designs.
- ✓ Provides a wide range of emulation features.
- ✓ Helpful tool for developers and designers.
Points to Consider
- × Some users may encounter minor bugs or wish for more advanced features.
- × The description is a bit wordy.
Official Description
From the Developer
Emulate devices, resize screens, and perfect your web design effortlessly with this cutting-edge testing and presentation tool.
Enhance your web design experience with our dynamic testing and presentation tool, designed to create, test, and showcase your digital experiences on any device, from wearables to very big screens. Customize your workspace fully and use or create your own device mockups, explore various display resolutions, and harness advanced emulation features like touch fingerprint simulation, user-agent emulation, and breakpoint guide, all within a professional-grade environment built for high-quality development and debugging. Push your limits with an intuitive zoomable workspace, precise ruler and grid tools, and a sleek presentation mode called 'Coffee Mode' — think of this tool as a first-level approximation of how your digital experience looks and feels across multiple devices.
Limitations: While our tool provides comprehensive device simulations, it does not replace the need for physical device testing.
Your extension? Let us know if we can update or correct anything!
Key Info
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Rating:
4.2/5.0
(283 ratings)
- Users:80,000
- Version:2.0.4
- Updated:Dec 17, 2025
- Developer:Visit Website →
Stats from Chrome Web Store
