mobile-simulator-tool от Lautaro Carnevale

Viewport Simulator lets you preview any webpage inside an accurate mobile device
frame — fully interactive, not a screenshot.

Features:
- 35+ devices: iPhones (11 to 16 Pro Max), Samsung Galaxy, Google Pixel, OnePlus, Xiaomi, and iPad
- Accurate browser UI: Safari iOS (bottom bar), Firefox Android, and Chrome Android — each with their real layout
- Fully interactive iframe — scroll, click, and navigate inside the simulated device
- Side control panel to switch device, browser, and zoom level in real time
- Custom device option — set any width and height in px
- Works on any webpage, including localhost

Built for web developers who want to test responsive designs without leaving the browser.