U-Eyes

U‑Eyes is a free Chrome extension that instantly wraps any webpage in popular mobile device frames for responsive testing, mock‑ups, and quick previews. Select a device, toggle Manual or Automatic mode, and capture framed or full‑page screenshots and animated GIF screencasts. All processing runs locally in the browser, protecting privacy and eliminating the need for physical devices or heavy emulators. Perfect for designers and developers who need fast, accurate visual checks across URLs.