About this Project

Enter one URL and instantly preview it across multiple device breakpoints side by side. UI Buddy proxies pages to bypass iframe restrictions and injects a sync bridge — keeping navigation, scroll position, and form inputs synchronized across all viewports in real time.

Key Features

• Load any URL into multiple device-sized preview panels
• Synchronized navigation across all viewports
• Cross-panel scroll sync with authority lock to prevent loops
• Form input and change event synchronization
• Proxy removes frame-blocking headers for reliable embedding
• Up to 6 simultaneous viewports with device presets