ViewChanger – PC Sites Mobile app analytics for January 21

Test responsive designs in 10 seconds. Instantly change viewport width from 390px to 3840px and verify PC, mobile, and tablet displays. Dramatically reduce your web testing time. ■ Key Features • Change viewport width instantly without page reload • Simulate browser detection with 74 User-Agent strings • Switch between iPhone, iPad, and desktop resolutions with one tap • Save up to 10 custom presets for frequently used settings • Share test results immediately with screenshot feature ■ Perfect For Web designers spending too much time on responsive checks, frontend engineers streamlining cross-browser testing, QA testers needing multi-device verification, general users wanting desktop sites on mobile, and all web development professionals. ■ How It Works 1. Enter URL to display site 2. Select PC/Mobile/Custom mode 3. Adjust viewport width with slider 4. Change User-Agent as needed ■ Privacy & Security Your privacy is our top priority. We never transmit your browsing data or personal information externally. All settings are securely stored on your device only. A professional tool that dramatically improves web testing efficiency.